User blog comment:Harma22/Birbs vs Catts/@comment-36550222-20190604193208/@comment-32833634-20190604213726

Yet Birbs possess the wings, allowing them to fly out of reach of catts. Not only that, but they often fly in flocks, while catts are usually found alone. A flock of birbs could easily provide a struggle for the catts.

Also the surreal word for cat is "cate" not "catt". The official one at least. Many people on the wiki use "catt" though.