hi people,i have fed birds for many many years and its been a real joy,there are many many cats in the area i live in and i have to say i have never seen a cat catch 1 of the birds[although i know they do get them] however i have seen more larger birds catching the smaller birds. when a cat is watching the birds, our clever featherfriends do know,watch a cat monitoring the birds and you will know what i mean.i also agree with sarah there are many birds,so people get a grip,we cant wrap them up in cotton-wool,its called life.