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1 March 2007 EVALUATION OF TECHNIQUES FOR ATTACHING TRANSMITTERS TO COMMON RAVEN NESTLINGS
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Abstract

We assessed 4 methods of attaching transmitters to nestling Common Ravens (Corvus corax) in Grand Teton National Park, Wyoming, in preparation for a larger telemetry study. The attachment types included backpack style with a cross-chest harness, rump mount (“figure-8”), necklace, and tarsal mounts. We tested 2 to 5 transmitters of each attachment type and recorded the ease of attachment, agitation of the ravens (from the nestling stage through the post-fledging dependence period) caused by the transmitters, and any noticeable abrasions caused by the attachment. We preferred the tarsal mount attachment because the transmitters can be placed on the bird early in the nestling stage and 1 person can attach it quickly. We did not prefer the other methods. The necklace mount became “bridled” between the bird's upper and lower mandible and/or fell off. Backpack and rump mounts required extensive fitting time, and we felt they should not be used until the nestlings had attained maximum growth, reducing the window of time for attachment.

Bryan Bedrosian and Derek Craighead "EVALUATION OF TECHNIQUES FOR ATTACHING TRANSMITTERS TO COMMON RAVEN NESTLINGS," Northwestern Naturalist 88(1), 1-6, (1 March 2007). https://doi.org/10.1898/1051-1733(2007)88[1:EOTFAT]2.0.CO;2
Accepted: 21 April 2006; Published: 1 March 2007
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