I notice that my hens are not receptive of the roos. I have a Delaware roo and a friz bantam. The Del does seem interested in the hens but they are not the least bit interested in him. The hens are of different breeds though there are some Dels but only one or two seem to be getting or letting him give them attention. Why? 4 of them came with him but only 2 seem to be getting mated.