I really liked the concept and the execution! Was exactly what I thought it was going to be, and the rush of having to keep a balance with growing chickens who would escape was fun.
Aside from graphics and lack of sound, I think the goal is a little high without having any other midtier rewards (such as chicken that lays $20, $50, etc.). It would have nice, of course to have more options to play with, like a reinforced fence, more chicken varieties, something else to spend your money towards, but beggars can't be choosers. Good game!