163. Farmer, C. J., L. J. Goodrich, E. Ruelas Inzunza, J. P. Smith. 2008. Conservation status reports of North American raptors. In The State of North America's birds of prey (K. L. Bildstein, J. Smith, and E. Ruelas, eds.). Series in Ornithology No. 3, Nuttall Ornithological Club and American Ornithologists' Union, Washington, D. C. | Hawk Mountain Sanctuary: Learn Visit Join

163. Farmer, C. J., L. J. Goodrich, E. Ruelas Inzunza, J. P. Smith. 2008. Conservation status reports of North American raptors. In The State of North America's birds of prey (K. L. Bildstein, J. Smith, and E. Ruelas, eds.). Series in Ornithology No. 3, Nuttall Ornithological Club and American Ornithologists' Union, Washington, D. C.

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