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Characteristics and Reproductive Biology of Grosbeaks (Pheucticus) in the Hybrid Zone in South Dakota
Vol 86, Iss 1, Page 1
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The First Prebasic Molt of the Yellow-Breasted Chat
Vol 86, Iss 1, Page 12
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Egg-Neglect in the Wilson's Storm Petrel
Vol 86, Iss 1, Page 16
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Copulatory Behavior of Downy Woodpeckers
Vol 86, Iss 1, Page 23
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Play in Hairy, Downy, and Other Woodpeckers
Vol 86, Iss 1, Page 35
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Observations on the Horned Screamer
Vol 86, Iss 1, Page 43
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Observations at a Carolina Wren Nest from Which Brown-Headed Cowbirds Fledged
Vol 86, Iss 1, Page 51
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Notes on Birds of Costa Rica
Vol 86, Iss 1, Page 58
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First Record of Olivaceous Cormorants Nesting in New Mexico
Vol 86, Iss 1, Page 65
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Ornithological News
Vol 86, Iss 1, Page 86
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Hemispingus parodii, a New Species of Tanager from Peru
Vol 86, Iss 2, Page 97
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Foot-Scute Differences among Certain North American Oscines
Vol 86, Iss 2, Page 104
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Tantalus milneedw ardsii Shufeldt: A Synonym of the Miocene Pheasant Miophasianus altus (Milne-Edwards)
Vol 86, Iss 2, Page 110
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Rhegminornis restudied: A Tiny Miocene Turkey
Vol 86, Iss 2, Page 114
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Scaly-Leg (Knemidokoptiasis) in a Population of Evening Grosbeaks
Vol 86, Iss 2, Page 121
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Winter Bird Densities on North and South Slopes
Vol 86, Iss 2, Page 125
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Ruffed Grouse Vocalizations at the Drumming Log
Vol 86, Iss 2, Page 131
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Eggshell Removal and Nest Sanitation in Ring Doves
Vol 86, Iss 2, Page 136
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Notes on Parental Behavior and Development of the Young in the Wood Thrush
Vol 86, Iss 2, Page 144
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Avian Eggshell Thickness: Variability and Sampling
Vol 86, Iss 2, Page 156
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Stretch and Snap Displays in the Great Egret
Vol 86, Iss 2, Page 165
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Ornithological News
Vol 86, Iss 2, Page 182
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Avian Biology, Volume II by Donald S. Farner, James R. King
Vol 86, Iss 2, Page 183
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The Madagascar Crested Ibis, a Threatened Species in an Endemic and Endangered Avifauna
Vol 86, Iss 3, Page 197
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Status of the Plain Chachalaca in South Texas
Vol 86, Iss 3, Page 200
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Study of Breeding Rails with Recorded Calls in North-Central Colorado
Vol 86, Iss 3, Page 206
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Notes on the Life History of the Yellow-Breasted Flycatcher in Surinam
Vol 86, Iss 3, Page 215
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Vocalizations of the Mountain Plover
Vol 86, Iss 3, Page 221
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Hybridization in Grosbeaks (Pheucticus) in North Dakota
Vol 86, Iss 3, Page 230
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Analysis and Comparison of Gaits in Whistling Ducks (Dendrocygna)
Vol 86, Iss 3, Page 237
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Telecrex Restudied: A Small Eocene Guineafowl
Vol 86, Iss 3, Page 246
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Another Old World Vulture from the New World
Vol 86, Iss 3, Page 251
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The Effects of Superimposed Magnetic Fields on Gull Orientation
Vol 86, Iss 3, Page 256
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Entry and Exit of Syringophilid Mites (Acarina: Syringophilidae) from the Lumen of the Quill
Vol 86, Iss 3, Page 272
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The President's Page. Margaret Morse Nice, 1883-1974
Vol 86, Iss 3, Page 301
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Correction: The President's Page
Vol 86, Iss 3, Page 302
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Ornithological News
Vol 86, Iss 3, Page 303
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Proceedings of the Fifty-Fifth Annual Meeting
Vol 86, Iss 3, Page 307
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Two New Species of Tanager from Peru
Vol 86, Iss 4, Page 321
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Taxonomic Status of Certain Clapper Rails of Southwestern United States and Northwestern Mexico
Vol 86, Iss 4, Page 325
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Prey Remains of Barn Owls in the Southern Bahama Islands
Vol 86, Iss 4, Page 336
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Songs in Contiguous Populations of Black-Capped and Carolina Chickadees in Pennsylvania
Vol 86, Iss 4, Page 344
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Competitive Relationships among Kingbirds (Tyrannus) in Trans-Pecos Texas
Vol 86, Iss 4, Page 357
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Kirtland's Warbler and Its Bahama Wintering Grounds
Vol 86, Iss 4, Page 374
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Domestic Cats as Predators and Factors in Winter Shortages of Raptor Prey
Vol 86, Iss 4, Page 384
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Bird Populations in the Hemlock Sere on the Highlands Plateau, North Carolina, 1946 to 1972
Vol 86, Iss 4, Page 397
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Early Breeding Season Behavior of Downy Woodpeckers
Vol 86, Iss 4, Page 407
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Breeding and Annual Cycle of Laughing Gulls in Tampa Bay, Florida
Vol 86, Iss 4, Page 419
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Insecticide Residues in White Pelican Eggs from Utah
Vol 86, Iss 4, Page 428
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An Analysis of Nest Box Use by Purple Martins, House Sparrows, and Starlings in Eastern North America
Vol 86, Iss 4, Page 435
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Incubation Constancy in the Red-Winged Blackbird
Vol 86, Iss 4, Page 450
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A Shift in Nesting Habitat by a Population of Common Eiders
Vol 86, Iss 4, Page 461
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Ornithological News
Vol 86, Iss 4, Page 482
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Errata
Vol 86, Iss 4, Page 483
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Evolution of the Rails of the South Atlantic Islands (Aves: Rallidae) by Storrs L. Olson
Vol 86, Iss 4, Page 484