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Captive and field-tested radio attachments for bald eagles

Journal of Field Ornithology

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Abstract

The effects of two radio transmitter attachment techniques on captive and one attachment technique on wild Bald Eagles (Haliaeetus leucocephalus) were studied. A Y-attachment method with a 160-g dummy transmitter was less apt to cause tissue damage on captive birds than an X-attachment method, and loosely fit transmitters caused less damage than tightly fit transmitters Annual survival of wild birds fitted with 65-g transmitters via an X attachment was estimated at 90-95%. As a result of high survival, only five wild birds marked as nestlings were recovered.Two of these birds had superficial pressure sores from tight-fitting harnesses It is recommended that a 1.3-cm space be left between the transmitter and the bird's b ack when radio-tagging post-fiedging Bald Eagles. Additional space, perhaps up to 2.5 cm, is required for nestlings to allow for added growth and development.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Captive and field-tested radio attachments for bald eagles
Series title:
Journal of Field Ornithology
Volume
66
Issue:
2
Year Published:
1995
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
173-180
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
173
Last page:
180
Number of Pages:
8