True Companions/Puppet Shows

In The Movie of Sesame Street (you heard me), Big Bird is pulled away from the neighborhood to be adopted by "his own kind" (other birds). The Aesop at the end is that his family isn't those related to him but those close to him, on Sesame Street... in other words, his true companions.
The Muppets, especially in the movies, as shown by the quote from Kermit in The Muppet Movie.
Jim, Rizzo, and Gonzo have one of these in Muppet Treasure Island, despite not even being the same species.