These are some of the designs Cosmo the Blue Jay went through over the years. As you can see, he didn't change much during the course of development.
Cosmo was so named because he was originally very philosophical, such as he wondered about the "cosmos".
As all amateur ornithologists are aware, blue jays' beaks are black, not yellow like Cosmo's. Cosmo won't admit it, but all his friends know he dyes his beak to look younger.