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1 December 2009 Lack of Differential Migration in Juvenile Merlins and Northern Harriers During Fall Migration in the Florida Keys
Sara Ress Wittenberg, Kimberly G. Smith
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Abstract

We used hydrogen stable isotopes in feathers collected from 1998 through 2003 to examine if there was differential migration of juvenile Merlins (Falco columbarius) and Northern Harriers (Circus cyaneus) through the Florida Keys, USA in fall. We examined differences by gender, population, and intra-season variation for 120 Merlins and 60 harriers. We found no difference in δDf values among years, and between genders, and dates of capture for either species.

Sara Ress Wittenberg and Kimberly G. Smith "Lack of Differential Migration in Juvenile Merlins and Northern Harriers During Fall Migration in the Florida Keys," The Wilson Journal of Ornithology 121(4), 841-843, (1 December 2009). https://doi.org/10.1676/08-142.1
Received: 30 October 2008; Accepted: 1 April 2009; Published: 1 December 2009
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