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  • All fields: Perching birds
(224 results)



Display: 20

    • A guide to nestling development and aging in altricial passerines

    • Birds; Perching birds; Research; Statistics;
    • This is a guide to altricial passerines. It has an explanation of variables used for aging birds and an explanation of methodology employed, and provides information obtained while recording the early aging of the Dusky Flycatcher, the Carolina...
    • American dipper

    • Birds; Migratory birds; Perching birds; Islands
    • Bird standing on rocks among vegetation at edge of rushing water of Three Sisters Creek on Kodiak Island.
    • American goldfinch

    • Birds; Perching birds;
    • An American goldfinch is pictured upclose resting on a branch.
    • American pipit

    • Birds; Migratory birds; Perching birds;
    • Pipit standing on black rock on Pillar Mountain, Kodiak Island. For more information about shorebirds birds visit http://www.fws.gov/birds/.
    • American robin

    • Birds; Perching birds;
    • An American robin is pictured sitting attentively on the ground.
    • American robin

    • Birds; Migratory birds; Perching birds;
    • Close-up front view of bird sitting on branch with red berries.
    • American Tree Sparrow

    • Birds; Birdwatching; Perching birds; Wildlife refuges;
    • An American Tree Sparrow perches on a branch in the DeSoto National Wildlife Refuge located in Iowa.
    • Ash-throated flycatcher

    • Birds; Migratory birds; Perching birds;
    • Bird sitting on dead branch of tree in Modoc County, Modoc National Forest, Oregon. For more information about migratory birds visit http://www.fws.gov/birds/.
    • Band-tailed pigeon

    • Birds; Perching birds;
    • An upclose shot of a band-tailed pigeon perching on a branch.
    • Barn swallow

    • Birds; Migratory birds; Perching birds
    • The barn swallow summer range is throughout most of North America. Easily identified from other swallows, the barn swallow has a long forked tail and a buffy-orange colored chest.
    • Barn swallow

    • Birds; Migratory birds; Perching birds;
    • Close-up side view of young bird with flight feathers and some down still attached.

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