Hm.. Pino, that is interesting about the chickens and ducks. My son just got some chickens for his garden to keep out locust. If it isn't one thing, it is another... Wow!
I haven't seen crows, but really aren't sure what we have around here. Now I'll have to keep an eye out. Looking at the house wren pics, I think these are the birds that are all over home depot, especially in the garden centers. They are pretty entertaining there... and I never see insects.
Agrarian, I just want to have something for myself. Some loss is expected, I guess.