I'm not entirely sure how common this notion is, but my grandmother said in a small flock of all hens (we're talking less than ten), I should keep the number of chickens odd and they'll be less inclined to fight. Has anyone ever heard this? Thoughts? Another two cents: my father swears the hens will feel more comfortable and lay more eggs if there's a rooster around. I personally would think that it's the same as for humans--i.e., ya get more done without a man in the house! Anyone have input on this?