Duncan has never caught a bird and if he did I don't know if he would eat it, or just kill it....
He tries very hard however....It's actually funny becuase he doesn't mind small birds like sparrows or songbirds in general. But, man, if those crows or doves come in his yard..... He chases them onto the roof and then barks at them and tries to climb the house to get them....I don't know why it's only the bigger ones....he sits and watches the small ones eat out of the bird feeder and on the ground....