Very scuffed 1.5 Birds (Birdmen aka Aves)
God, this is such a pain in the ass. I hate making Rimworld sprites. BUT, I couldn't find a single mod that just gives you a NORMAL BIRD (I find it ridiculous that every critter mod ever has superhuman stats. No, a hollow-boned avian isn't gonna beat a human in a fair fistfight. Size and weight and design matters damnit.)
Should be self contained but be warned it's hastily coded and sprited.
Yeah I forgot to mention that this is a bird-MAN mod. They're a little faster, prettier and weaker than humans. Very poor melee choice.