I have 2 new ameracana pullets (about 6 months) they refuse to go into their coop at night and insist on perching in a bush I have in the front yard. It has now been over 3 weeks! Every night I crawl up the bush and take them to their coop. At first I thought they didnt like the coop because there are so many others in it, so I cleaned up the other coop and put nice new roosts and bedding in it. They all free run during the day, I have 15 other chickens, 1 other is an ameracana and 2 of the others are roosters, the rest are all an assortment of layers. Anyway I have added them all over this past summer and it usually takes 2 or 3 nights before the new ones no where to go to bed. But this is 3 weeks and they show no sign of changing their minds. There are mink and racoon and owls here, so no way will I let them stay out. Any suggestions to help me change their little minds?