At risk of sounding like a grump here and not knocking what you're doing? but I don't understand why so much time, money and effort is spent on something that isn't rare nor needs any encouragement in boosting numbers. There's other creatures that could do with a bigger hand.
They're little orphaned creatures.
The site isn't being used for anything else much, people can do a spot of, er, bushwhacking for free and maybe also do a little bit of good for wildlife along the way at zero marginal cost.
I don't see that more justification is needed.
At any one time I always have at least a couple of rescue dogs.
I click this link every day:
http://www.theanimalrescuesite.com/clickToGive/home.faces
I give substantial support to the RSPB -- in particular the "Save the Albatross" campaign, of which I'm a patron.
There are at least fifteen bird feeders in the garden, and right now I can see a woodpecker, a nuthatch, assorted blue, great coal and willow tits, not to mention something like a dozen bullfinches and a couple of wood pigeons feasting hungrily on the food that I put out for them every day. Every day when I walk the dogs I take about half a kilo of sunflower seeds and a few slices of bread to Pennytown Ponds, and robins, chaffinches, dunnocks, more tits and pigeons, some ducks and a few Canada geese follow me around begging for it.
http://www.jubileegroup.co.uk/JOS/misc/u6119080-small.jpg
So I don't feel that what I'm doing is in any way taking the food out of anyone else's mouth.
Could you just let us all know what
you are doing for the world's wildlife?