Originally Posted by johngalway
I'll do a two for one with the above. My link to Wikipedia was only to illustrate that Eagles are capable of taking animals of the sizes and weights mentioned, not that the Irish Eagles are thinking about, or doing so, simply that they are capable of such an act.
Bit of a large difference between the Golden eagles used for hunting larger animals and the ones in Donegal. The subspecies of Golden Eagle that is used to aid in the hunting of wolves and the like is Aquila chrysaetos daphanea, which is the largest and most powerfully built Golden Eagle by a long way, with only the North American sub species being in it's size class.
The species in Ireland is Aquila chrysaetos, which is simply nowhere near the strength and power class that the two sub species I named before are. In fact the size difference can be so great that it is comparable to the difference in size between a female sparrowhawk and a buzzard.
I never got a chance to reply to you yesterday after you were good enough to list what you regarded as pests and why you would kill them. I don't agree with everything you said in that post as some of the cases would be rare enough events in my view, but I can see where you are coming from in each case though.
The magpie one baffles me though, as it is an arguement I have heard used to justify the killing of them here and in the UK.
The impact that magpies have upon songbird populations in not great at all, in fact the damage they do lags far behind what birds like the jay would do for example. It is not a pleasant sight, but it is natural and part of natures way of controlling the numbers.
The biggest two threats to songbirds, both here and in the UK, are cats(domestic and feral) and man. It is estimated that cats will kill more small birds each year than all the other main avain threats combined.