Scavenging bird deterrence frequently fails due to habituation. We demonstrated such habituation by gulls and corvids to blank rounds used in a dawn-to-dusk regime at a landfill site in southern England. We then combined blank rounds with live rounds and shot birds whenever they attempted to land. Gull numbers declined significantly despite only 1.9% of the population being shot. Corvid numbers returned to precontrol levels despite 52.7% of the population being shot. We suggest that shooting reduces gull habituation to blank rounds but is ineffective at reducing habituation by corvids.
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1 September 2008
Use of Lethal Control to Reduce Habituation to Blank Rounds by Scavenging Birds
Andrew T. Baxter,
John R. Allan
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Journal of Wildlife Management
Vol. 72 • No. 7
September 2008
Vol. 72 • No. 7
September 2008