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UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN BIOLOGY APR 9 1992 oology Cerro dr f *io Federal Amazonas, Vene> lost c-iSf.-ii. the text BIOLOGY LIBRARY 101 BURRILL HALL MOV 2 1991 FIELDIANA Zoology NEW SERIES, NO. 65 The Birds of Cerro de la Neblina, Territorio Federal Amazonas, Venezuela David E. Willard1 Mercedes S. Foster2 George F. Barrowclough3 Robert W. Dickerman3 Peter F. Cannell34 Sadie L. Coats3t Joel L. Cracraft1 5 John P. O'Neill6 1 DivisionofBirds, FieldMuseum ofNaturalHistory, RooseveltRoadat LakeShoreDrive, Chicago. Illinois60605 2NDatCionalEcologyResearch Center, Fish and WildlifeService, NationalMuseum ofNaturalHistory. Washington. 20560 1DepartmentofOrnithology, American Museum ofNaturalHistory, New York, New York 10024 *DivisionofBirds. NationalMuseum ofNaturalHistory, Smithsonian Institution, Washington. DC. 20560 5DepartmentofAnatomyandCellBiology, UniversityofIllinois, Chicago, Illinois60680 6Museum ofNaturalScience, LouisianaState University, Baton Rouge, Louisiana 70803 tDeceased. Accepted March 4, 1991 Published October 31, 1991 Publication 1429 PUBLISHED BY FIELD MUSEUM OF NATURAL HISTORY © 1991 Field Museum ofNatural History LibraryofCongress Catalog CardNumber: 91-72795 ISSN 0015-0754 PRINTED IN THE UNITED STATES OFAMERICA Table ofContents List ofTables Introduction 2 1. Widespread species new from Neblina The Mountain 2 lowlands 66 Description 2 2. Lowland species filling artificial range History ofOrnithological Exploration 2 gaps 66 The 1984-1985 Expedition 4 3. Western tepui species new to Neblina, Species Accounts 8 with closest published locality 67 Conventions 8 4. Resident forest species totals, by family/ Accounts 10 subfamily, for five lowland Amazonian Discussion 63 sites 68 Molt 63 5. Mt. Duida species not recorded from Gonadal Data 63 Neblina 68 Range Extensions 65 Comparisonswith Other Avifaunas 67 Acknowledgments 69 Literature Cited 70 List of Appendices 1. Collections ofbirds from Cerro de la List of Illustrations Neblina 71 2. Specimens ofbirds from San Carlos de Rio Negro and Santa Lucia taken on the 1. The Pantepui area ofVenezuela 3 current expedition 77 2. Neblina massifrising from surrounding 3. Major tepui montane avifaunas 79 lowlands 4 3. Centralcanyon(CanonGrande)ofNebli- na 5 4. Stream-edge forest, 1730 m, Camp VII ... 6 5. Forest on ridge, 1515 m, Camp XI 7 6. Bog vegetation at 2100 m, Camp II 8 7. Topography ofCerro de la Neblina, with location ofcamps 9 8. Patterns ofmolt 64 9. Patterns ofgonadal development 65 10. Comparison ofAndean and Neblina montane avifaunas 69 in