Male pin-tail whydahs are territorial, and one male will have several females in his group. Courtship involves a hovering flight by the male that shows off his long tail. You can watch a video here. The tail only grows on males during the breeding season, and it is 1.5 times the length of the bird’s body!
Pin-tail whydahs eat seeds, grains, and insects.
Pin-tail whydahs are brood parasites, so females will lay their eggs in the nest of other species. This becomes even more of a problem because pin-tail whydahs have been introduced into areas where the native bird species have no natural defenses to this behavior.