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Examples

  • Here's an example of a skylarking Cassin's sparrow although this male isn't "fixing" his wings before circling downward; I guess he missed the memo describing the correct display flight: Population numbers of Cassin's sparrows can vary widely in response to summer rainfall.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Cassin's sparrows have a distinctive courtship performance that makes them quite unusual among North American passerines: the male flies straight up into the sky in a display flight, then floats downward on fixed wings, singing.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Cassin's sparrows have a distinctive courtship performance that makes them quite unusual among North American passerines: the male flies straight up into the sky in a display flight, then floats downward on fixed wings, singing.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Response: This is a Cassin's sparrow, Peucaea cassinii -- probably a male since the scrunched up eye indicates it is preparing to sing and males of this species are the singers.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • For example, here is psweet's video from 5 May 2011 of what is likely the second sighting ever of a Cassin's sparrow in the state of Illinois: Of course, since psweet is a regular here, feel free to talk with him further about this video.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Here's an example of a skylarking Cassin's sparrow although this male isn't "fixing" his wings before circling downward; I guess he missed the memo describing the correct display flight: Population numbers of Cassin's sparrows can vary widely in response to summer rainfall.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Cassin's sparrow, Peucaea cassinii (formerly, Aimophila cassinii; protonym, Zonotrichia cassinii), also known as Cassin's (summer) finch, photographed at Katy Prairie Conservancy, Texas (USA).

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • For example, here is psweet's video from 5 May 2011 of what is likely the second sighting ever of a Cassin's sparrow in the state of Illinois: Of course, since psweet is a regular here, feel free to talk with him further about this video.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Response: This is a Cassin's sparrow, Peucaea cassinii -- probably a male since the scrunched up eye indicates it is preparing to sing and males of this species are the singers.

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

  • Cassin's sparrow, Peucaea cassinii (formerly, Aimophila cassinii; protonym, Zonotrichia cassinii), also known as Cassin's (summer) finch, photographed at Katy Prairie Conservancy, Texas (USA).

    Mystery bird: Cassin's sparrow, Peucaea cassinii 2011

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