i'm pretty new to chickens. i have one each of barred rock, buff orpington, silver laced wyandotte, and black australorp. i really like all four breeds. they are "heavy" breeds so aren't as flighty, good temperment, and should give me good eggs (not yet). they make a really pretty flock together.First of all I would like to know what type breed(s) of chicken would you suggest for a beginning city person, who wants mostly layers ? Next I'd like to know why? Also, can chickens eat snails, and if not could you give me a list of what the do eat (besides chicken feed)?