Why does Fleet Farm sell feeders without covers on them???? I am able to hang it from the rafters and such, but some of my girls use the roost while the others like to chill out on top of the coop. Only problem is its a small 8 x 5 coop so I am limited in places to put the feeder and waterer. The girls like to add their only special ingredient to there feed if you know what I mean. The feeders do not come with covers and I am curious why? Any suggestions?