AVIS-IBIS

Birds of Indian Subcontinent

Lack of Differential Migration in Juvenile Merlins and Northern Harriers during Fall Migration in the Florida Keys

Publication Type:Journal Article
Year of Publication:2009
Authors:Wittenberg, SRess, Smith, KG
Journal:The Wilson Journal of Ornithology
Volume:121
Issue:4
Date Published:2009
ISBN Number:15594491
Keywords:Accipitridae, Aesalon, Aesalon columbarius, Circus, Circus cyaneus, Circus hudsonius, Falco, Falco columbarius, Falconidae, Florida
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 intraseason variation for 120 Merlins and 60 harriers. We found no difference in $\delta \text{D}_{\text{f}}$ values among years, and between genders, and dates of capture for either species.
URL:http://www.jstor.org/stable/20617001
Short Title:The Wilson Journal of Ornithology
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith