The game is fun, and there's room for improvement. The idea is interesting and you can have fun but maybe you can add more stuff like as you progress or pass certain score, the chickens can come in different sizes, or maybe adding some gameplay around the hatch besides the upgrades.
Overall is really fun but another thing i can recommend is having some background music, maybe lo-fi or something to make you fee like is chicken madness!! haha. Anyways, just recommendations, Great work!