Hi! I noticed that the chickens love to scurry into shrubbery and scratch, sleep, and hang out in the bushes/low hanging tree's, etc. Does anyone have any preference or knowledge of good shrubbery or plants to cultivate for a chicken habitat? I have a yard for them about the size of a 4 car garage and have 5 chickens. Should I plant edibles like corn? Any particular plants a favorite? Thanks, as always!