Re: A Sparrowhawk.


"Malcolm" <Malcolm@xxxxxxxxxxxxxxxxxx> wrote in message
news:l5mseQnPHRVEFw00@xxxxxxxxxxxxxxxxxxxxx

In article <313030303330383344551B6D88@xxxxxxxxxxxx>, Gerald L R Stubbs
<stubbs@xxxxxxxxxxxx> writes
We do have a problem with sparrowhawks. They tend to take our doves.
The sparrowhawks never wipe the doves out completely, going away when
they have reduced numbers by half. They then wait until the numbers
double before they come in again.

I am not sure if the spars work this one out and know that they mustn't
kill the doves that lay the golden eggs, or if it a co-incidence that
exists only in my mind. But it is a fact that they never wipe the flock
out and always leave a goodly number.

This is neither being worked out by the sparrowhawks nor a coincidence, it
is just a very typical relationship between predator and prey.

If I mention Maynard-Smith do I give the game away :~)
!
!
!
!
I know its behaviour not feeding dynamics :~)


Quite an experience, and I don't think I will ever forget those
beautiful eyes staring at me.


Stubbsy -- take a trundle into Derry's place
You might have an interesting time by all accounts

:~)
However I understand that once hooked Birds of prey are one of the most
addictive species set


--

regards
Jill Bowis

Pure bred utility chickens and ducks
Housing; Equipment, Books, Videos, Gifts
Herbaceous; Herb and Alpine nursery
Working Holidays in Scotland
http://www.kintaline.co.uk


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