Buck Buck Bagu-

Feed 100 chickens (hens/roostros/chickadoos) to slimes on the Ranch, cumulative. Meat-eating slimes - Pink, Tabby, Hunter and Saber - eat chickens, so keep a coop stocked and feed chickens to your carnivores. 100 adds up steadily as you run a coop-fed corral (a corral of Tabbies next to a chicken coop is the easy way).