crow research

To: <>
Subject: crow research
From: "Chris Cantor" <>
Date: Wed, 28 Jul 2010 16:55:54 +1000
Dear Friend,

I am a psychiatrist based in Noosa with the University of Queensland
 researching cross species group responses to injured group members.
 Novelist Sir Walter Scott mentioned (fact or fiction) that crows may
 kill injured group members to prevent the injured member attracting
 hawks to the rookery - predator deterrence. This makes evolutionary
 sense. Trawling the web I have found references to mercy killing by
 crows which does not make such evolutionary sense. Konrad Lorenz
 described general mobbing but I have been unable to find any
 authoritative references on the predator deterrent or mercy killing
 suggestions. As I have been searching for several weeks I would be most 
 appreciative if you were able to point me in the suitable directions
 (i.e. references or people who might be able to help).

 Dr Chris Cantor
Home: +61 (0)7 54492992

Chris and Becky Cantor
Home: +61 (0)7 54492992

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