What is the distinctive throat pouch of a male kori bustard called?

The distinctive throat pouch of a male kori bustard is called a gular pouch.

During courtship, the male kori bustard inflates this pouch as part of an elaborate display. The throat and neck become visibly expanded, making the already impressive bird look larger while it advertises to females. “Gular” is a zoological term relating to the throat or area beneath the chin.

The kori bustard is one of the heaviest flying birds and lives in open habitats across eastern and southern Africa. Although it can fly, it spends much of its time walking through grasslands searching for insects, small vertebrates, seeds, and other food.

The gular pouch should not be confused with a bird’s crop, which is a digestive storage area. The pouch is associated with display and is especially conspicuous in breeding males, making it a useful identification feature during courtship.