I have a feeding station on which I put all sorts of bird food to appeal to a wide range of birds but they don't seem to eat it much and it goes to waste. I have seen birds but they are mainly bigger ones such as blackbirds, pigeons etc. My mother lives about 2 miles away and she has countless small birds visiting her feeding area. What am I doing wrong? I have two cats which probably don't help, but the feeding station is well concealed in the garden. I must add that a nesting box has been used twice this year by Great Tits.