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Raptor selection of captive reared and released Galliform birds.

Authors :
Perkins, Rebecca
Boal, Clint W.
Dabbert, C. Brad
Source :
Wildlife Society Bulletin (2328-5540); Dec2018, Vol. 42 Issue 4, p713-715, 3p
Publication Year :
2018

Abstract

Captive rearing and release of birds in the order Galliformes remains a popular management tactic despite low survival rates. We investigated avian predator selection of captive‐reared northern bobwhites (Colinus virginianus) as a potential driver of their high mortality. We simulated avian predator hunts on a flushing pair of bobwhites during trials conducted from 6 February 2015 to 14 February 2015 in Texas, USA. When presented a choice of a captive‐reared bobwhite or wild bobwhite, a Harris's hawk (Parabuteo unicinctus) pursued a captive‐reared bobwhite in 8 of 10 flight trials. This selective rate, combined with observations from auxiliary research indicate avian predation may be a greater risk for captive‐reared birds than wild birds. The success of captive‐rearing and release efforts may benefit from a better understanding of how to more adequately prepare captive‐reared birds for release. © 2018 The Wildlife Society. Despite high levels of mortality, wildlife managers and hunters continue to release captive‐reared Galliformes to augment wild populations. Using paired‐release trials we observed a trained Harris's hawk to select a captive‐reared northern bobwhite over a wild northern bobwhite in 8 of 10 trials, potentially indicating that avian predation is a greater risk for captive‐reared birds than wild birds. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
23285540
Volume :
42
Issue :
4
Database :
Complementary Index
Journal :
Wildlife Society Bulletin (2328-5540)
Publication Type :
Academic Journal
Accession number :
133769656
Full Text :
https://doi.org/10.1002/wsb.925