ALGUNAS NOTAS SOBRE LAS CARACTERÍSTICAS EXTERNAS DEL PONCHITO PECHIESCAMADO (GRALLARICULA LORICATA), UNA ESPECIE ENDÉMICA DEL NORTE DE VENEZUELA. Carlos Verea. ................. 1
MIGRATORY STATUS OF THE WHITE-THROATED HAWK (BUTEO ALBIGULA): WHAT DO WE KNOW UP TO NOW?. Ana Trejo, Patricia Capllonch, & Lorenzo Sympson. .................................................................................... 11
DIETS OF CRACIDS: HOW MUCH DO WE KNOW? Marcia C. Muñoz & Gustavo H. Katan. ................................... 21
PREY SELECTION AND FORAGING PATTERNS OF THE WHITE-RUMPED SANDPIPER (CALIDRIS FUSCICOLLIS) AT PENÍNSULA VALDÉS, PATAGONIA, ARGENTINA. María de los Angeles Hernández & Luis Oscar Bala. ... 37
THE BREEDING BIOLOGY OF THE FORK-TAILED FLYCATCHER (TYRANNUS SAVANA) IN LOWLAND PINE SAVANNA HABITATS IN BELIZE. Mario Teul, Victoria D. Piaskowski, & Karl M. Williams. ................................. 47
ECOLOGY AND CONSERVATION OF BOBOLINKS (DOLICHONYX ORYZIVORUS) IN RICE PRODUCTION REGIONS OF BOLIVIA. Rosalind B. Renfrew & Ana María Saavedra. ...................................................................... 61
MIXED-SPECIES FLOCKS OF BIRDS IN THE CERRADO, SOUTH AMERICA: A REVIEW. Dárius Pukenis Tubelis..................................................................................................................................................................................... 75
DISTRIBUIÇÃO DO TRINTA-RÉIS-REAL (THALASSEUS MAXIMUS) DURANTE 2005 NO ESTUÁRIO DE CANAÉIA-IGUAPE-ILHA COMPRIDA. Edison Barbieri & Fernanda Voietta Pinna. .................................................................... 99
SHORT COMMUNICATIONS EVIDENCES OF BROOD PARASITISM OF GIANT COWBIRD (MOLOTHRUS ORYZIVORUS) ON SPOT-BREASTED (ICTERUS PECTORALIS) AND STREAKBACKED (I. PUSTULATUS) ORIOLES. Jeffrey K. McCrary & J. Edward Gates. ..................................................................................................... 111
LONG-BILLED HERMIT (PHAETHORNIS SUPERCILIOSUS) CAUGHT IN GOLDEN ORB-SPIDER (NEPHILIA CLAVIPES) WEB. Walter H. Sakai. ................................................................................................................................. 117
USURPACIÓN DE UN NIDO DE CHORLITO DOBLECOLLAR (CHARADRIUS FALKLANDICUS) POR EL TERO COMÚN (VANELLUS CHILENSIS). Fernando Gabriel Maugeri. ................................................................................. 121
REDESCUBRIMIENTO DEL BAILARÍN CASTAÑO (PIPRITES PILEATA) EN ARGENTINA. Claudio Maders, Nestor Fariña, & Alejandro Bodrati. ............................................................................................................................................ 127
OBSERVATIONS OF HUMMINGBIRD FEEDING BEHAVIOR AT FLOWERS OF HELICONIA BECKNERI AND H. TORTUOSA IN SOUTHERN COSTA RICA. Joseph Taylor & Stewart A. White. ..................................................... 133
OBSERVATIONS ON THE NESTING AND DIET OF THE WHITE-CAPPED TANAGER (SERICOSSYPHA ALBOCRISTATA) IN EASTERN ECUADOR. Harold F. Greeney, Jose Simbaña, Kimberly S. Sheldon, Alan Craik, & Robert Jonsson. ............................................................................................................................................................ 139
NEST SITE SELECTION OF WILSON'S STORM PETREL (OCEANITES OCEANICUS) AT CIERVA POINT, ANTARCTICA. J. L. Orgeira, G. Juárez, S. Benítez, L. Esper, L. Benítez, & M. Torres. ....................................... 143
REGISTRO REPRODUCTIVO DEL FRAILECITO (CHARADRIUS ALEXANDRINUS) EN EL REFUGIO DE FAUNA SILVESTRE CUARE, ESTADO FALCÓN, VENEZUELA. Sandra B. Giner F. & Alejandro Nagy. ............................ 147
OBITUARIES (Edited by James W. Wiley) OSCAR PAULINO ARREDONDO DE LA MATA. Carlos Arredondo Antúnez. ............................................................................................................................................................................... 149
BOOK REVIEWS (Edited by John G. Blake) .................................................................................................................. 155
NEWS–NOTICIAS ............................................................................................................................................................... 159
A NEW SPECIES OF ERIOCNEMIS (TRICHOLIDAE) FROM SOUTHWEST COLOMBIA. Alexander Cortés-Diago, Luis Alfonso Ortega, Luis Mazariegos-Hurtado, & André-A. Weller. .................................................................... 161
WINTER BEHAVIOR AND ECOLOGY OF THE ALDER FLYCATCHER (EMPIDONAX ALNORUM) IN PERU. Mercedes S. Foster. .......................................................................................................................................................... 171
DIET OF THE GREATER RHEA (RHEA AMERICANA) IN AN AGROECOSYSTEM OF THE FLOODING PAMPA, ARGENTINA. Viviana Comparatore & Cristina Yagueddú. ........................................................................................ 187
¿MIGRA EL ARAÑERO CARA NEGRA (GEOTHLYPIS AEQUINOCTIALIS VELATA)? Patricia Capllonch & Diego Ortiz. ..................................................................................................................................................................................... 195
HISTORIA NATURAL Y COMPORTAMIENTO SOCIAL DEL CRESTUDO (CORYPHISTERA ALAUDINA). Juan I. Areta & Alejandro Bodrati. .............................................................................................................................................. 209
OCCURRENCE, ABUNDANCE AND NOTES ON SOME THREATENED ECUADORIAN BIRDS IN THE EL CANCLÓN LAGOON, MANGLARES CHURUTE ECOLOGICAL RESERVE. Juan José Alava, Xavier Arosemena, Evelyn Astudillo, Melina Costantino, Magali Peñalver, & Carola Bohorquez. ................................................................... 223
LANDSCAPE CHARACTERISTICS OF PUERTO RICAN VIREO (VIREO LATIMERI) NESTING HABITAT, WITH SOURCE-SINK IMPLICATIONS. Adrianne G. Tossas & John R. Thomlinson. ....................................................... 233
PARAMETROS REPRODUCTIVOS Y NUEVA LOCALIDAD DE ANIDACIÓN PARA EL GORRIÓN DE WORTHEN (SPIZELLA WORTHENI) EN EL ESTADO DE COAHUILA, MEXICO. Aldegundo Garza de León, Isabel Morán Rosales, Francisco Cancino de La Fuente, Romeo Tinajero Hernández, & Samuel López de Aquino. ........ 243
NATURAL HISTORY AND BREEDING BEHAVIOR OF THE OLIVE (PSAROCOLIUS YURACARES) AND YELLOW-BILLED (P. ANGUSTIFRONS ALFREDI) OROPENDOLAS IN CHAPARE PROVINCE, BOLIVIA. Rosendo M. Fraga & Stefan Kreft. ........................................................................................................................................................................ 251
DISTRIBUCIÓN HISTORICA Y ACTUAL DEL LORO CABEZA AMARILLA (AMAZONA ORATRIX) EN LA COSTA CENTRAL DEL PACÍFICO MEXICANO: VENTAJAS Y LIMITACIONES EN EL USO DE GARP EN ESPECIES BAJO FUERTE PRESIÓN DE TRÁFICO. Tiberio C. Monterrubio-Rico, Laura E. Villaseñor-Gómez, María Consuelo Marín-Togo, Edna A. López-Cordova, Beneiza Fabian-Turja, & Valentino Sorani-Dalbon. ............................... 263
EVALUACIÓN CON FINES SISTEMÁTICOS DE LOS CARACTERES DEL TARSOMETATARSO DE LOS SPHENISCIDAE. Carolina Acosta Hospitaleche & Germán Gasparini. .................................................................. 277
PHILOPATRY OF THE SEMIPALMATED SANDPIPER (CALIDRIS PUSILLA) ON THE BRAZILIAN AMAZONIAN COAST. Antonio Augusto Ferreira Rodrigues, Ana Tereza Lyra Lopes, Evonnildo Costa Conçalves, Artur Silva, & Maria Paula Cruz Schneider. ........................................................................................................................... 285
SHORT COMMUNICATIONS ASYMMETRIC MOLT OR FEATHER WEAR IN FLYING STEAMER DUCKS (TACHYERES PATACHONICUS) FROM COASTAL HABITATS IN ARGENTINA. Robert E. Wilson, Sarah A. Sonsthagen, Christopher P. Barger, & Kevin G. McCracken. ................................................................................. 293
OBSERVATIONS ON THE NESTING OF SPOT-BACKED ANTBIRD (HYLOPHYLAX NAEVIA) IN EASTERN ECUADOR. Harold F. Greeney. ......................................................................................................................................... 301
BIRD FEEDING BEHAVIOR AS A MEASURE OF RESTORATION SUCCESS IN A CARIBBEAN FORESTED WETLAND. Miguel A. Acevedo. ....................................................................................................................................... 305
A GREATER ANI (CROTOPHAGA MAJOR) GIVES A NUPTIAL GIFT WHILE COPULATING. David M. Logue. ................................................................................................................................................................................................ 311
FIRST NEST DESCRIPTION FOR NICEFORO'S WREN (THRYOTHORUS NICEFORI): A CRITICALLY ENDANGERED COLOMBIAN ENDEMIC SONGBIRD. Sandra V. Valderrama, Jorge E. Parra, & Nicolás Dávila. ....................... 313
BOOK REVIEWS (Edited by John G. Blake) .................................................................................................................. 319
ARTICLES
BIRDS OF THE CENTRAL RIO PARACTI VALLEY, A HUMID MONTANE FOREST IN DEPARTAMENTO COCHABAMBA, BOLIVIA. Robb T. Brumfield & Oswaldo Maillard Z. ..................................................................... 321
AVIFAUNA OF THE UPPER ESSEQUIBO RIVER AND ACARY MOUNTAINS, SOUTHERN GUYANA. Mark B. Robbins, Michael J. Braun, Christopher M. Milenski, Brian K. Schmidt, Waldyke Prince, Nathan H. Rice, Davis W. Finch, & Brian J. O'Schea. .............................................................................................................................. 339
SIERRA SANTA ROSA: AN OASIS OF BIRD DIVERSITY IN ARID NORTHERN MEXICO. John E. McCormack, Gabriela Castañeda-Guayasamin, & Greg Levandoski. ........................................................................................... 369
AVALIAÇÃO POPULACIONAL DO PAPAGAIO-DE-CARA-ROXA (AMAZONA BRASILIENSIS) (PSITTADIDAE) NO ESTADO DO PARANÁ, BRASIL. Pedro Scherer Neto & Cecilia Barbosa Toledo. ............................................... 379
HOME RANGES OF BARRED (MICRASTUR RUFICOLLIS) AND COLLARED (M. SEMITORQUATUS) FOREST-FALCONS DURING THE BREEDING SEASON IN TIKAL NATIONAL PARK, GUATEMALA. Russell Thorstrom. ................................................................................................................................................................................................ 395
LIFE HISTORY TRAITS AND BREEDING SUCCESS OF THE SCARLET-HEADED BLACKBIRD (AMBLYRAMPHUS HOLOSERICEUS) IN THE ARGENTINEAN PAMPAS. Gustavo J. Fernández, Myriam E. Mermoz, Paulo E. Llambías, & E. Manuela Pujol. ........................................................................................................................................ 407
ASSEMBLAGE OF SHOREBIRDS AND SEABIRDS ON ROCHA LAGOON SANDBAR, URUGUAY. Matilde Alfaro & Mario Clara. ......................................................................................................................................................................... 421
MATERIALES UTILIZADOS POR EL PICAFLOR RUBI (SEPHANOIDES SEPHANIODES) PARA LA CONSTRUCCIÓN DE NIDOS EN LA SELVA VALDIVIANA, CHILE. Julián Torres-Dowdall, Felipe Osorio, & Guillermo M. Suárez. ......................................................................................................................................................... 433
CHARACTERIZATION OF MICROSATELLITE LOCI IN THREE SPECIES OF AMAZONA (PSITTACIFORMES) USING HETEROLOGOUS PRIMERS. Renato Caparroz, Kelly C. E. Leite, Leandro A. Chinalia, Cristina Y. Miyaki, & Rosane G. Collevatti. ......................................................................................................................................................... 439
FIRST DESCRIPTION OF THE NEST, NEST SITE, EGGS AND NESTLINGS OF NARIÑO TAPACULO (SCYTALOPUS VICINIOR). Agustina Arcos-Torres & Alejandro Solano-Ugalde. ............................................................................ 445
DIET OF THE PATAGONIAN SIERRA-FINCH (PHRYGILUS PATAGONICUS) ON NAVARINO ISLAND, CHILE. Steven M. McGehee & Jack Clinton Eitniear. ............................................................................................................................ 449
NOTAS SOBRE LA ECOLOGÍA REPRODUCTIVA DE TRES ACCIPÍTRIDOS EN VENEZUELA. Rosauro Navarro R., Gedio Marín, & Jorge Muñoz G. ...................................................................................................................................... 453
LONGEVIDAD DE DOS ESPECIES DE AVES DEL NORTE DE VENEZUELA. Carlos Verea, Marielba Díaz, & Alecio Solórzano. ........................................................................................................................................................................... 459
BIOLOGÍA REPRODUCTIVA DEL CHIVIZCOYO (DENDRORTYX BARBATUS) EN CAUTIVERIO. Juan Cornejo. ................................................................................................................................................................................................ 463
A DESCRIPTION OF A NEST AND NESTLINGS OF THE RUFOUS-THIGHED KITE (HARPAGUS DIODON), WITH ADDITIONAL COMMENTS ON DIET AND BEHAVIOR. Gustavo Sebastián Cabanne & Ignacio Roesler. ......... 469
BOOK REVIEWS (Edited by John G. Blake) .................................................................................................................. 477
ÉXITO REPRODUCTIVO Y PRODUCTIVIDAD DEL CHINGOLO (ZONOTRICHIA CAPENSIS) EN UN ÁREA DE MONTE DE LA PROVINCIA DE BUENOS AIRES (ARGENTINA). Gustavo J. Fernández & Natalia M. Duré Ruitz. ................................................................................................................................................................................................ 481
BOBOLINK (DOLICHONYX ORYZIVORUS) NUMBERS AND NON BREEDING ECOLOGY IN THE RICE FIELDS OF SAN JAVIER, SANTA FE PROVINCE, ARGENTINA. Bernabé López-Lanús, Ignacio Roesler, Daniel E. Blanco, Pablo F. Petracci, María Serra, & María Elena Zaccagnini. ..................................................................................... 493
COMPARATIVE ANALYSIS OF RETINA STRUCTURE AND PHOTOPIC ELECTRORETINOGRAMS IN DEVELOPPING ALTRICIAL PIGEONS (COLUMBA LIVIA) AND PRECOCIAL JAPANESE QUAILS (COTURNIX COTURNIX JAPONICA). Luz Marina Rojas, Makerys A. Mitchell, Yleana M. Ramírez, & Raymond McNeil. ................................................................................................................................................................................................ 503
AVIFAUNA DEL RÍO MANUPARE Y CRÁTER ITURRALDE, UN BOSQUE AMAZONICO EN EL DEPARTAMENTO DE LA PAZ, BOLIVIA. Oswaldo Maillard Z., John M. Bates, José G. Tello, & Miguel Ángel Aponte. ..................... 519
RELACIONES DE TAMAÑO ENTRE DEPREDADOR Y PRESA EN UN GRUPO DE PASSERIFORMES PATAGÓNICAS. Dora Grigera & Ana Trejo. .................................................................................................................. 535
ANTI-PREDATOR RESPONSES OF NEOTROPICAL RESIDENT AND MIGRANT BIRDS TO FAMILIAR AND UNFAMILIAR OWL VOCALIZATIONS ON THE YUCATAN PENINSULA. Matthew W. Reudink, Joseph J. Nocera, & Robert L. Curry. .............................................................................................................................................................. 543
SEABIRD ASSEMBLAGES ATTENDING LONGLINE VESSELS IN THE ARGENTINEAN ECONOMIC EXCLUSIVE ZONE. Patricia A. Gandini & Juan P. Seco Pon. .......................................................................................................... 553
VARIAÇÃO TEMPORAL DO TRINTA-RÉIS-DE-BICO-AMARELO (THALASSEUS SANDVICENSIS EURYGNATHA) DURANTE O ANO DE 2005 NO ESTUÁRIO DE CANANÉIA-IGUAPE-ILHA COMPRIDA. Edison Barbieri & Fernanda Voietta Pinna. ................................................................................................................................................... 563
BREEDING BEHAVIOR OF THE COSCOROBA SWAN (COSCOROBA COSCOROBA) IN EL YALI WETLAND, CENTRAL CHILE. Celeste M. Silva-García & Gwenda L. Brewer. ............................................................................ 573
ELEVATIONAL VARIATION IN BODY SIZE OF CRESTED DUCKS (LOPHONETTA SPECULARIOIDES) FROM THE CENTRAL HIGH ANDES, MENDOZA, AND PATAGONIA. Mariana Bulgariella, Robert E. Wilson, Cecilia Kopuchian, Thomas H. Valqui, & Kevin G. McCracken. ............................................................................................ 587
SHORT COMMUNICATIONS NEST AND PARENTAL CARE OF THE BERYL-SPANGLED TANAGER (TANGARA NIGROVIRIDIS) IN NORTHEASTERN ECUADOR. Kimberly S. Sheldon & Harold F. Greeney. ............................. 603
NESTING OF BARRED HAWK (LEUCOPTERNIS PRINCEPS) IN NORTHEAST ECUADOR. Rudy A. Gelis & Harold F. Greeney. ........................................................................................................................................................................... 607
WINTERING PEREGRINE FALCONS (FALCO PEREGRINUS) IN THE PERUVIAN AMAZON. Marc Kéry. ................................................................................................................................................................................................ 613
FIRST DESCRIPTION OF THE NEST AND EGGS OF THE GRAY-AND-GOLD WARBLER (BASILEUTERUS FRASERI). Eliot T. Miller, Harold F. Greeney, Kristof Zyskowski, & Rudolphe A. Gelis. ...................................... 617
SANDERLINGS (CALIDRIS ALBA) BANDED IN CANADA RECOVERED IN CHILE. Michel Sallaberry A. & Mahina Mann N. ................................................................................................................................................................................ 623
DISTRIBUTION AND HABITAT PREFERENCES OF THE SOUTHERN ANTPIPIT (CORYTHOPIS DELALANDI) IN THE AUSTRAL YUNGAS OF BOLIVIA AND ARGENTINA. María Eva Alvarez & Pedro G. Blendinger. ........................ 627
INDEX TO VOLUME 18, 2007 ........................................................................................................................................... 635
REVIEWERS FOR ORNITOLOGÍA NEOTROPICAL, VOLUME 18 ................................................................................ 643
THE PRESIDENT’S PAGE ............................................................................................................... i
A COMPARISON OF GALLERY AND DRY FOREST AVIAN COMMUNITIES IN THE GRAN CHACO OF BOLIVIA. Alex E. Jahn, Ana Maria Saavedra, R. Ian Horn, Robert C. Dobbs, Ana Luz Porzecanski, Jacqueline J. Weicker, & Susan E. Davis. ....................................................................................................................................................................... 1
BREEDING OF THE RUFOUS-THIGHED HAWK (ACCIPITER ERYTHRONEMIUS) IN ARGENTINA AND BRAZIL. Sergio Hugo Seipke & Gustavo Sebastián Cabanne. .................................................................................................. 15
FENOLOGÍA Y COMPORTAMIENTO MIGRATORIO DE LA MOSQUETA ESTRIADA (MYIOPHOBUS FASCIATUS) EN SUDAMÉRICA. Diego Ortiz & Patricia Capllonch. ................................................................................................... 31
GROUP TERRITORIALITY AND PLURAL BREEDING IN THE PURPLE GALLINULE (PORPHYRULA MARTINICA) IN A SEASONALLY FLOODED SAVANNA IN VENEZUELA. Zaida Tárano. ...................................................................... 43
BIRD DIVERSITY IN THE PETENS OF YUCATAN STATE, MEXICO. Juan B. Chablé- Santos, José I. González Rojas, Luis A. Peña-Peniche, & Ricardo M. Pasos-Enríquez. ................................................................................... 55
TROPHIC ECOLOGY OF THE BURROWING OWL (ATHENE CUNICULARIA) IN URBAN ENVIRONMENTS OF MAR CHIQUITA BIOSPHERE RESERVE (BUENOS AIRES PROVINCE, ARGENTINA). Karina B. Sánchez, Ana I. Malizia, & María S. Bó. ....................................................................................................................................................................... 71
SEASONAL CHANGES TO ARTHROPOD ABUNDANCE IN SUCCESSIONAL FORESTS OF THE YUCATAN PENINSULA, WITH IMPLICATIONS FOR OVERWINTERING FOREST BIRDS. Adrea L. Smith & Raleigh J. Robertson. ............................................................................................................................................................................. 81
UTILIZATION OF EPIPHYTES BY BIRDS IN A BRAZILIAN ATLANTIC FOREST. César Cestari & Marco Aurélio Pizo. ......................................................................................................................................................................................... 97
COMPOSICIÓN DE LA DIETA DE LA GAVIOTA AUSTRAL (LARUS SCORESBII) EN PATAGONIA, ARGENTINA. Patricia A. Gandini, Juan Pablo Seco Pon, & Esteban Frere. .................................................................................. 109
FIRST DESCRIPTION OF THE NEST AND YOUNG OF THE AGILE TIT-TYRANT (UROMYIAS AGILIS). Frances Bonier, Paul R. Martin, & Ignacio T. Moore. ................................................................................................................. 117
FIRST DESCRIPTION OF THE EGG AND NOTES ON THE NEST OF THE CINNAMON- TAILED SPARROW (AIMOPHILA SUMICHRASTI). Amy E. McAndrews, Jorge E. Montejo-Díaz, & Gerson D. Alducin-Chávez. .... 123
RECORDS OF THE WHITE-THROATED HAWK (BUTEO ALBIGULA) ALONG THE HILEAN COASTAL FORESTS. Ecuardo A. Silva-Rodríguez, Jaime E. Jiménez, Marco A. Sepúlveda-Fuentes, Maximiliano A. Sepúlveda, Ignacio Rodríguez-Jorquera, Tomás Rivas-Fuenzalida, Sergio A. Alvarado, & Ricardo A. Figueroa R. ....... 129
NOTES ON BIRDS THAT FOLLOW ARMY ANTS IN THE NORTHERN ANDES. Margarita Rios, Gustavo Londoño, & Luis Biancucci. ............................................................................................................................................................... 137
BEHAVIOR OF THE TAWNY ANTPITTA (GRALLARIA QUITENSIS) IN NORTHERN ECUADOR. Harold F. Greeney & Inka Harms. ......................................................................................................................................................................... 143
OBSERVATIONS ON THE NESTLING AND PARENTAL CARE OF THE YELLOWBELLIED CHAT-TYRANT (OCHTHOECA DIADEMA) IN EASTERN ECUADOR. Eric C. Hannelly & Harold F. Greeney. ................................. 149
DESCRIPTION OF THE NEST AND PARENTAL BEHAVIOR OF THE BARECROWNED ANTBIRD (GYMNOCICHLA NUDICEPS). David W. Bradley. ........................................................................................................................................ 153
OBSERVATIONS ON A NEST OF THE BEARDED TACHURI (POLYSTICTUS PECTORALIS). Martín Carrizo & Kaspar Delhey. ................................................................................................................................................................... 157
COMPORTAMIENTO MIGRATORIO DEL ZORZAL PLOMIZO (TURDUS NIGRICEPS NIGRICEPS) EN ARGENTINA. Patricia Capllonch, Karina Soria, & Diego Ortiz. ........................................................................................................ 161
BIRD SONG STRUCTURE AND TRANSMISSION IN THE NEOTROPICS: TRENDS, METHODS AND FUTURE DIRECTIONS. Nicole K. Barker. ....................................................................................................................................... 175
MOVIMIENTOS ESTACIONALES Y AFINIDAD FILOGENÉTICA DE LA VIUDITA COLUDA (MUSCIPIPRA VETULA). Juan I. Areta & Alejandro Bodrati. ................................................................................................................................. 201
NESTING BIOLOGY OF THE ANDEAN SOLITAIRE (MYADESTES RALLOIDES) IN NORTHEASTERN ECUADOR. Harold F. Greeney & Konrad Halupka. .......................................................................................................................... 213
BREEDING AND STATUS OF THE GRENADA HOOK-BILLED KITE (CHONDROHIERAX UNCINATUS MIRUS). Russell Thorstrom & Desmond McQueen. ................................................................................................................. 221
INFLUENCE OF TIME OF DAY, DURATION AND NUMBER OF COUNTS IN POINT COUNT SAMPLING OF BIRDS IN AN ATLANTIC FOREST OF PARAGUAY. Alberto Esquivel M. & Salvador Peris. ................................................... 229
FORAGING BEHAVIOR OF TWO SPECIES OF MANAKINS (PIPRIDAE) IN MIXEDSPECIES FLOCKS IN YASUNÍ, ECUADOR. Galo Buitrón-Jurado. .................................................................................................................................... 243
SEASONAL ABUNDANCE AND BREEDING CHRONOLOGY OF THE MILITARY MACAW (ARA MILITARIS) IN A SEMI-ARID REGION OF CENTRAL MEXICO. Francisco Alberto Rivera-Ortíz, Ana María Contreras-González, Carlos Alberto Soberanes-González, Alfonso Valiente-Banuet, & María del Coro Arizmendi. ....................... 255
ANÁLISIS DE LA DISTRIBUCIÓN DEL COLORÍN PECHO NARANJA (PASSERINA LECLANCHERII): UNA ESPECIE ENDÉMICA DE LA VERTIENTE DEL PACIFICO MÉXICANO. Jorge H. Vega Rivera, Miguel A. Ortega Huerta, & Rocio Guerrero. .................................................................................................................................................................. 265
DYNAMICS OF NECTARIVORY IN THE HOUSE SPARROW IN AN URBAN ENVIRONMENT. Lucas M. Leveau. ................................................................................................................................................................................................ 275
SHORT COMMUNICATIONS THE NEST AND EGGS OF PREVOST'S GROUND SPARROW (MELOZONE BIARCUATA), GROUP BIARCUATA. Raymond M. Danner, Suzanne Langridge, & Thomas Dietsch. .............. 283
FIRST DESCRIPTION OF THE NEST AND EGGS OF THE WESTERN STRIPED MANAKIN (MACHAEROPTERUS REGULUS STRIOLATUS), WITH OBSERVATIONS ON NESTING BEHAVIOR. Renata Durães, Harold Greeney, & José R. Higaldo. ................................................................................................................................................................. 287
A COMPARISON OF PARENTAL CARE OF THE GREAT ANTSHRIKE (TARABA MAJOR) IN COSTA RICA AND ECUADOR. ............................................................................................................................................................................ 293
NOTES ON THE NESTING OF CHOPI BLACKBIRDS (GNORIMOPSAR CHOPI) IN ARGENTINA AND PARAGUAY, WITH DATA ON COOPERATIVE BREEDING AND BROOD PARASITISM BY SCREAMING COWBIRDS (MOLOTHRUS RUFOAXILLARIS). Rosendo M. Fraga. ................................................................................................ 299
FIRST DESCRIPTION OF EGGS OF THE GOLDEN-BROWED CHLOROPHONIA (CHLOROPHONIA CALLOPHRYS). Leonardo Chaves, Julio Sánchez, & Carlos Quesada. ............................................................................................. 305
COLOR DIVERGENCE AMONG CINNAMON TEAL (ANAS CYANOPTERA) SUBSPECIES FROM NORTH AMERICA AND SOUTH AMERICA. Robert E. Wilson, Muir Eaton, & Kevin G. McCracken. ................................................... 307
FIELD NOTES ON THE BREEDING BIOLOGY AND DIET OF FERRUGINOUS PYGMY-OWL (GLAUCIDIUM BRASILIANUM) IN THE DRY CHACO OF ARGENTINA. Joaquín D. Carrera, Fernando J. Fernández, Federico P. Kacoliris, Luis Pagano, & Igor Berkunsky. ...................................................................................................................315
NEWS–NOTICIAS–NOTÍCIAS ........................................................................................................................................... 320
SEED PREDATION OF COURATARI GUIANENSIS (LECYTHIDACEAE) BY MACAWS IN CENTRAL AMAZONIA, BRAZIL. Torbjørn Haugaasen. ........................................................................................................................................ 321
AGGRESSIVE INTERACTIONS AND PRELIMINARY EVIDENCE FOR REVERSED SEXUAL DOMINANCE IN RAMPHOCELUS TANAGERS. Daniel J. Lebbin. ........................................................................................................... 329
NESTING ECOLOGY OF THE SPECTACLED WHITESTART IN ECUADOR. Harold F. Greeney, Paul R. Martin, Robert C. Dobbs, Rudolphe A. Gelis, Amelie Bücker, & Hannah Montag. ............................................................ 335
TOCO TOUCAN FEEDING ECOLOGY AND LOCAL ABUNDANCE IN A HABITAT MOSAIC IN THE BRAZILIAN CERRADO. José Ragusa-Netto. ...................................................................................................................................... 345
CLARIFYING THE NEST ARCHITECTURE OF THE SILVICULTRIX CLADE OF OCHTHOECA CHAT-TYRANTS (TYRANNIDAE). Eliot T. Miller & Harold F. Greeney. .................................................................................................... 361
ESTADO DE LA POBLACIÓN DEL PAVÓN MOQUIRROJO (CRAX GLOBULOSA) EN EL BAJO RÍO CAQUETÁ, AMAZONÍA COLOMBIANA. Gustavo Alarçon-Nieto & Erwin Palacios. .................................................................. 371
LAS AVES DE LAS ISLAS LOBOS DE AFUERA (PERÚ) EN LA PRIMAVERA DE 2004. Judith Figueroa & Marcelo Stucchi. ................................................................................................................................................................................ 377
INTERMITTENT INCUBATION IN TWO NEOTROPICAL SWIFTS: AN ADAPTATION TO LIFE IN THE AERIAL ENVIRONMENT? Manuel Marín. ...................................................................................................................................... 391
MIXED FLOCK COMPOSITION AND FORAGING BEHAVIOR OF INSECTIVOROUS BIRDS IN UNDISTURBED AND DISTURBED FRAGMENTS OF HIGHANDEAN POLYLEPIS WOODLAND. Erik Matthysen, Filip Collet, & Jennifer Cahill. .................................................................................................................................................................................... 403
DIET AND FEEDING PREFERENCE OF THE PLAIN ANTVIREO (DYSITHAMNUS MENTALIS) IN AN AREA OF BRAZILIAN ATLANTIC FOREST. Marco Antônio Manhães & Manoel Matins Dias. ............................................. 417
CARACTERISTICAS GEOGRÁFICAS DE LA UBICACIÓN DE NIDOS DEL LORO CORONA LILA (AMAZONA FINSCHI) EN LA COSTA DEL PACÍFICO EN MICHOACÁN, MÉXICO. Juan Manuel Ortega-Rodríguez & Tiberio C. Monterrubio-Rico . ............................................................................................................................................................. 427
BLUE MALES AND GREEN FEMALES: SEXUAL DICHROMATISM IN THE BLUE DACNIS (DACNIS CAYANA) AND THE SWALLOW TANAGER (TERSINA VIRIDIS). Ana S. Barreira, Gabriela Garcia, Darío A. Lijtmaer, Stephen C. Lougheed, & Pablo L. Tubaro. ........................................................................................................................................ 441
SHORT COMMUNICATIONS INCUBATION BEHAVIOR OF THE WHITE-BROWED SPINETAIL (HELLMAYREA GULARIS) IN SOUTHEASTERN ECUADOR. Harold F. Greeney & Kristof Zyskowski. .......................................... 451
THE NESTLING AND PARENTAL CARE OF SLATE-CROWNED ANTPITTA (GRALLARICULA NANA) IN NORTHEASTERN ECUADOR. Harold F. Greeney & Eliot T. Miller. ............................................................................ 457
ADDITIONS TO OUR UNDERSTANDING OF SCYTALOPUS TAPACULO REPRODUCTIVE BIOLOGY. Harold F. Greeney. ............................................................................................................................................................................... 463
REDISCOVERY OF THE RECURVE-BILLED BUSHBIRD FOR THE CORDILLERA CENTRAL OF COLOMBIA. Gabriel J. Colorado. ......................................................................................................................................................................... 467
DOS FRUTEROS MIGRANTES DE ARGENTINA. Diego Ortiz & Patricia Capllonch. ............................................... 473
BOOK REVIEWS (Edited by John G. Blake). ................................................................................................................. 481
NEWS–NOTICIAS–NOTÍCIAS ........................................................................................................................................... 483
BIOLOGÍA REPRODUCTIVA DE LA GARZA CUCA (ARDEA COCOI) EN EL CENTRO- SUR DE CHILE. Daniel González-Acuña, Ricardo A. Figueroa R., Alejandro González, Carlos Barrientos, Karen Ardiles, & Lucila Moreno. ................................................................................................................................................................................ 485
AVIFAUNA OF THE NORTHERN CORDILLERA CENTRAL OF THE ANDES, COLOMBIA. Andrés M. Cuervo, Paulo C. Pulgarín, Diego Calderón-F., José M. Ochoa-Quintero, Carlos A. Delgado-V., Alejandro Palacio, Jorjany M. Botero, & Wilmar A. Múnera. .......................................................................................................................................... 495
COLONIALITY OF BROWN BOOBY (SULA LEUCOGASTER) IN GORGONA NATIONAL NATURAL PARK, EASTERN TROPICAL PACIFIC. Andres Ospina-Alvarez. ........................................................................................... 517
INVENTARIOS MUNICIPALES DE AVIFAUNA Y SU APLICACIÓN A LA CONSERVACIÓN: EL CASO DE ZACAPOAXTLA, PUEBLA, MÉXICO. Bernardino Villa-Bonilla, Octavio R. Rojas-Soto, Ana Gabriela Colodner-Chamudis, & César Tejeda-Cruz. .................................................................................................................................. 531
DIET OF IMPERIAL CORMORANTS (PHALACROCORAX ATRICEPS) AND ROCK SHAGS (P. MAGELLANICUS) BREEDING SIMPATRICALLY IN PATAGONIA, ARGENTINA. Mariana Bulgarella, Lucrecia Cella Pizarro, Flavio Quintana, Alexandra Sapoznikow, Atila Gosztonyi, & Luisa Kuba. ....................................................................... 553
OBSERVATIONS ON THE BREEDING BIOLOGY OF BRONZY INCA (COELIGENA COELIGENA) IN NORTHEASTERN ECUADOR. Andrzej Dyrcz & Harold Greeney. .............................................................................................................. 565
NEW AND NOTEWORTHY OBSERVATIONS OF RAPTORS IN SOUTHWARD MIGRATION IN NICARAGUA. Jeffrey K. McCrary & David P. Young, Jr. ................................................................................................................................... 573
SHORT COMMUNICATIONS PARENTAL CARE OF THE LONG-TAILED TAPACULO (SCYTALOPUS MICROPTERUS) IN NORTHEASTERN ECUADOR. Ben G. Freeman & Harold F. Greeney. ................................... 581
NESTING HABITAT AND NUMBERS OF PERUVIAN TERNS AT FIVE BREEDING SITES IN THE CENTRAL-SOUTHERN COAST OF PERU. Carlos B. Zavalaga, Manuel A. Plenge, & Albert Bertolero. .............................. 587
FORAGING BEHAVIOR OF THE TORRENT TYRANNULET (SERPOPHAGA CINEREA) IN COSTA RICA. Gregory George & Terry Master. ................................................................................................................................................... 595
BODY MASSES OF BIRDS FROM ATLANTIC FOREST REGION, SOUTHEASTERN BRAZIL. Iubatã Paula de Faria & William Sousa de Paula. .............................................................................................................................................. 599
FIRST DESCRIPTION OF THE NEST OF THE BLACK-AND-WHITE HAWK EAGLE (SPIZAETUS MELANOLEUCUS) IN THE BRAZILIAN ATLANTIC RAINFOREST, SOUTHEAST BRAZIL. ......................................................................... 607
NUEVOS REGISTROS DEL ÁGUILA POMA (SPIZAETUS ISIDORI) Y COMENTARIOS SOBRE SU CONSERVACIÓN EN ARGENTINA. Ignacio Roesler, Anahí E. Formoso, Flavio N. Moschione, Matías A. Juhant, & Darío H. Podestá. ............................................................................................................................................................................... 611
DIET OF THE GRAYISH SALTATOR (SALTATOR COERULESCENS) IN NORTHEASTERN ARGENTINA. Mario L. Chatellenaz. ........................................................................................................................................................................ 617
BOOK REVIEWS (Edited by John G. Blake). ................................................................................................................. 627
INDEX TO VOLUME 19, 2008. .......................................................................................................................................... 633
REVIEWERS FOR ORNITOLOGÍA NEOTROPICAL, VOLUME 19. ............................................................................... 647
NEWS–NOTICIAS–NOTÍCIAS ........................................................................................................................................... 648
