It may be that a difference in colour may mean difference in the
likelihood of being mobbed during the day, which exposes the owls to
danger from diurnal raptors if they have to move, or otherwise making
them more stressed and fatigued.
Or it could be that difference in colour produces a difference in
hunting success at dusk and dawn.
John Leonard
On 24 February 2011 10:38, Ian May <> wrote:
> What predator would selectively attack grey morph variation in Tawny Owl
> (See http://en.wikipedia.org/wiki/Tawny_Owl ) to the extent of altering
> their population dynamics?
>
>
>
> Laurie Knight wrote:
>>
>> see http://news.bbc.co.uk/earth/hi/earth_news/newsid_9401000/9401733.stm
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John Leonard
Canberra
Australia
www.jleonard.net
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