Polymelia and Syndactyly in a Swainson’s Hawk (Buteo swainsoni)

Krysta H. Rogers; Aslı Mete; Stella McMillin; Richard Shinn

doi:10.7589/2014-05-121

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1 January 2016 Polymelia and Syndactyly in a Swainson’s Hawk (Buteo swainsoni)

Krysta H. Rogers, Aslı Mete, Stella McMillin, Richard Shinn

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J. of Wildlife Diseases, 52(1):114-117 (2016). https://doi.org/10.7589/2014-05-121

Abstract

A hatch-year Swainson’s Hawk (Buteo swainsoni) recovered from Modoc County, California, US, on 12 August 2012 had malformations of the rear limbs consisting of bilateral polymelia and syndactyly. We describe the malformations and evaluate potential causes. Postmortem examination revealed varus rotation of both femurs and abnormal appendages originating from the distal medial surface of the tibiotarsi with two nonfunctional digits on the right leg and one digit on the left leg. There was syndactyly between digits III and IV of both feet. Avian pox viral dermatitis was present on the skin of the ventral abdomen. A definitive cause of the skeletal malformations was not identified.

Citation Download Citation

Krysta H. Rogers, Aslı Mete, Stella McMillin, and Richard Shinn "Polymelia and Syndactyly in a Swainson’s Hawk (Buteo swainsoni)," Journal of Wildlife Diseases 52(1), 114-117, (1 January 2016). https://doi.org/10.7589/2014-05-121

Received: 7 May 2014; Accepted: 1 June 2015; Published: 1 January 2016

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