Funny concept! The music fits well with the relaxed and cartoonish style of the models and your itch page is well polished!
The only improvements I could spot would be to allow the player to Full-screen the game on the itch page and to improve the frame rate, because sometimes it was hard to play.
But the overall experience is pretty engaging, I spent quite sometime trying to fully grow an army of chickens and keep the fox at bay xD