Stocky Bird, With Little, Great and Kori Types

Puzzle 13 of The Moon Hard Pack

Question is: Stocky Bird, With Little, Great and Kori Types

and the answer is: BUSTARD

Word Meaning:

BUSTARD — Any of several large terrestrial birds of the family Otididae in the order Otidiformes that inhabit dry open country and steppes in the Old World.

Definitions from Wiktionary.