I was given a whole cut down tree of corkscrew willow branches last week. Today I started peeling off the bark to make things out of it and after about 5 min. of peeling I looked down at my feet. There were 3 of my chickens eating the peelings. I was told that willow bark was nontoxic to birds but I feel I just have to ask people here to make sure I have not poisoned my girls. Dose anyone know?