Robert,
I realise that much of the British Isles is modified habitat, and that
"In the UK urban gardens represent a sizeable area of habitat", it's just that I prefer more "natural" methods of feeding, such as I mentioned.
As
brokenswan has said, feeding stations over here tend to encourage 'pests' such as sparrows, starlings, indian mynas, pigeons etc. Apart from those undesireables, artificial feeding also disrupts the 'balance' in the favour of native 'increaser' species, which are usually territorial, and/or aggressive - noisy miners, magpies, butcherbirds, lorikeets, etc. This is undesireable to the local biodiversity, and in fact, you even have to be careful what 'type' of plants are added to a garden, as some of the larger, 'showy' grevilleas for example, will have the same effect. I'm sure there are similar, country specific situations and outcomes in other countries as well.
I agree somewhat with "Horses for courses", and I have no real position on practices in other countries, although I could see what I outlined applying in most countries (Siberian winters and such notwithstanding).
Birds in Backyards, a program from
BirdLife Australia, has issued some recommendations /guidelines /info, on this and related matters, which forum members may find of interest .....
http://www.birdsinbackyards.net/feed-or-not-feed-0
http://www.birdsinbackyards.net/places
http://www.birdsinbackyards.net/Guidelines-Creating-Bird-Habitats
Myself, personally, I hate the notion of artificial feeding with a passion, but then again, I have transformed countless gardens /yards into veritable oases for all manner of previously non-existent bird life. In fact, many times it has me stumped, how native wildlife miraculously find these 'wells' in the 'desert' of suburbia, where they are located.
Chosun :gh: