Adult female, San Joaquin Marsh, Irvine, Orange County, CA. 11-07. © John  C. Avise.

Northern Harrier

Circus cyaneus

Falconiformes: Accipitridae

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Adult female, San Joaquin Marsh, Irvine, Orange County, CA. 11-07. © John  C. Avise.
Adult female, San Joaquin Marsh, Irvine, Orange County, CA. 11-06. © John  C. Avise.

Adult female, San Joaquin Marsh, Irvine, Orange County, CA. 3-07. © John  C. Avise.
Adult male, San Joaquin Marsh, Irvine, Orange County, CA. 2-07. © John  C. Avise.

Adult male, Palm Beach County, Florida, 1-08. © John  C. Avise.
Juvenile, Iron Co., Michigan, 8-08. © John  C. Avise.