The Snooty Flamingos are the main antagonists from the Fantasia 2000 short The Carnival of the Animals. The Flamingos are trying to get rid of Yo Yo Flamingo's yo-yo toy.
Obviously, don't nominate any human characters. Hybrids like Cheetah or The Lizard are okay, as are shapeshifters with one set animal form (eg Professor McGonagall.)