They are squaring up to the robin, family of blue tits, sparrows and blackbirds. One of the bastards tried to take on the rooks in the garden last week. They don't care, they're like the rottweiler of the garden bird in my garden, in fact I think they would happily take on my rottie if he wasn't scared of them. None of the other birds are getting a look in with the food, how can I put them off?!