for those who want to stop sparrowhawk attacks in garden

earthdragon64 · #**101** (**permalink**) 01-10-2009, 01:20 PM

Quote:

Originally Posted by eeyore

yep its a rubbish film with tom cruise

It was a not bad film with Keanu Reeves, not Tom Cruise.

Jason Green · #**102** (**permalink**) 01-10-2009, 01:25 PM

Quote:

Originally Posted by eeyore

btw i dont think territory clash is likely to be a big factor - the sprawk with the artificially high density of easily caught little birds in its territory will just have a smaller than average teritory (on account of not needing to fly so far to take targets of opportunity) allowing more ex teritorial space for other sprawks not so fortunate.

That makes sense

So if external factors limit the number of birds visiting the feeders or if Fudgey moves house, I wonder how the Sprawk would reclaim his territory... or even if he could?

eeyore · #**103** (**permalink**) 01-10-2009, 01:59 PM

Quote:

Originally Posted by earthdragon64

It was a not bad film with Keanu Reeves, not Tom Cruise.

true - i was thinking of "the firm"

ones a lawyer for the devil , ones a lawyer for the mob - similar concept

eeyore · #**104** (**permalink**) 01-10-2009, 02:03 PM

Quote:

Originally Posted by Jason Green

That makes sense

So if external factors limit the number of birds visiting the feeders or if Fudgey moves house, I wonder how the Sprawk would reclaim his territory... or even if he could?

its doubtful that he could absolutely reclaim it but their territories have soft edges (ie they overlap) and the bird in fudgeys territory would likely be a very fit bird as a consequence of having ample food without expending much energy so the neighbouring birds would likely not be able to stop him hunting their teritories

the likely resiult would be that the weakest bird in the area would fail to breed - or if it did breed fail to fledge due to increased competition for food and thus the population would readjust itself - survival of the fittest in action