I was eating strawberries out on the deck the other evening and the chickens and ducks came up to see what I had so i tossed some out and they pecked over them and walked away. No go on strawberries either. Now apples or peaches will get you mobbed around here but they grow very local so maybe they know that I can easily get plenty for them.
I did have a duck to lay on some frozen peas. Must have felt good but I have tossed them in the pools, tossed them into the food dishes and out in the yard and the next day they are still all there. However, they will eat the dried ones in the feed mix I buy in the winter.
We fence off the garden so I am not sure if they like the plants.