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Apparent Natural Divisions of Hylocichla minima group
Summary of Color Phases Among Graycheeked Thrushes
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abundant adult aliciae altitude appear areas average avifauna balsam Bick Bicknell's thrush breeding grounds Brewster Brimley brooding brown brown-phased Brownish Olive call notes Catskills coast collected Colombia color phases distribution early eggs empty nests evergreen examined feathers feeding feet female flight frag frequently Gillet gray-cheeked thrush Green Mountains groves habits Haiti hatching heard hermit thrush Hylocichla minima incubating bird July June June 21 Labrador Lafresnaye's larger form later leave the nest male Mansfield mate measurements migration molt moss Museum nell's thrush nestlings nests studied Newfoundland North northern gray-cheeks observed occur olive phase Oologist ornithologists parent peaks plumage probably race range records red squirrels region remiges Seal Island season seems sexed singing skins smaller form song South southern species specimen taken spruce subspecies suggests summer summit tail tion tree usually veery Vermont White Mountains wing length winter woods young birds