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The Breeding Biology of the Pinon Jay Russell P Balda
Polyandry in the Spotted Sandpiper Helen Hays
Monogamy and Polyandry in the Spotted Sandpiper
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adult American Aridlands average banded barbs behavior bill birds Black-throated Blue Duck breeding season broods Cattle Egret cent chickadees chicks Chihuahuan clutch colony color contour feathers copulation courtship dark gray display dominance edge eggs European Bee-eater eyes eyries Falklands Family feeding female Figure fledging flock Florida Scrub Jays foraging forest four George glacial ground Guanica habitat hatching incubation individuals insects Jamaica John juvenile Kidney Island lores malar region male mandible marsh mate meters Mountain Plover neck nest nestlings noctitherus North America observations occur pair pale passerines pecks perch Peregrine Falcons period pine Pinon Jay plumage polyandry population predators probably Puerto rachis range Red-throated Bee-eaters Refugium rictal bristles Robert semibristles Snowy Owls Sonoran species Spotted Sandpipers study area Table tarsus territory tion toes trees turnstones tussock grass Tussockbirds vegetation Warbler Whip-poor-will William wing winter Wren young