Bob the Builder (1999)

S2E9 Dizzy's Birdwatch

While exploring, Bob and Lofty discover a bird's nest containing an egg. Wendy informs them that they must leave the nest undisturbed. Eager to help, Dizzy offers to keep an eye on it. Once the egg hatches, Dizzy is reluctant to leave her post. Bob requires some cement mixing, prompting Dizzy to rush off to help. She returns just in time to witness the young bird taking its first flight.