Peep and the Big Wide World is a PBS Kids show about three birds who go on adventures in the big wide world.
Before the show Peep and The Big Wide World premiered, there was a test animation made in 2004. It was similar to A Duck's Tale, but all characters' designs are different than the show's final cut. The pilot is lost and it's very hard to find from now on. There was also a 1962 short (shot in black-and-white) and 3 1988 short, but those where found even though its unknown how many minutes the pilot is. It may be either 5 minutes or 6 minutes long.
Edit: The test animation was found in 2021.
Note: Chirp is not in the pilot.
NoParking Berry’s video on the subject.: https://www.youtube.com/watch?v=U7kDDc_HXqM