My Friends Tigger & Pooh

Lumpy's Alvin Goes to Pieces / Rabbit's Eggcellent Adventure - S1-E24

Corrected entry: Rabbit hatches an egg. About a minute or two after the egg is hatched, the bird flies away. It takes at least at least a couple weeks before a bird can fly on its own.

Correction: Sentient rabbits, bears, pigs, owls all indicate that this doesn't take place in our universe and doesn't follow our laws of reality. Their universe, their rules.