Yes the do seem to like the willow. They also peck here and there at the beauty bush and the winterberry; none to the detrement. They have exhibited zero interest in the azaleas, spireas and barberry and only the occasional disinterested peck here and there on the rhododendron and mountain laurel. If you want to really interest them, give them bushes that will produce berries that they will like. Right now they love to eat bugs around my blueberry, gooseberry and strawberry, but only eat a few of the leaves...of course they are also all the way across the yard versus next to their coop. However, when they fruit I think the girls will take much more interest in them.