Good stuff you have a greenfinch. Finches usually forage around in flocks or small groups. My tally at the moment is about 9 greenfinches, but the goldfinches have gone walkabout just now, sure they will be back soon. Chaffinches are a bit sparse as well but once winter really sets in they will be back. Its Blackbirds I am seeing loads of at the moment and can't keep them going on apples. ;) ;)