Racist?
Okay so I'm writing a story and it's basically going to have racism towards every creature in MLP one by one in each chapter.
The first three chapters are respectively griffons, Unicorns, and Zebras. Please tell me anything you think would be racist towards a Griffon.

Well any comments that compare them to simple birds should be annoying,
Things like A bird in the hand is worth two in the bush or kill two birds with one stone.

Also the fact that other species automatically assume that they are all greedy beasts who like to hunt and eat animals should be offensive too.

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calling them chickens would probably be a very touchy subject

horse eater, superpredator (pun intended), that's all I got everything else I think of just sounds childish like calling someon doodyhead

Little cat -bird, freak, you're family is pennyless..hmmm

How about bird brain or feather head for starters. Maybe pussy cat could be their "N" word. Or maybe even rats with wings.

What about egg-holes?
Or statue-crappers?
...
Or bird-brains?
I dunno'. Try watching The Adventures Of Sonic The Hedgehog and make a list of insults Dr Robotnik calls Scratch.