The correct option is A Apteryx
Kiwi belongs to the genus Apteryx. Kiwi is a nocturnal flightless bird of New Zealand that have a long neck and stout legs and only bird that survives in the order Apterygiformes. Kiwi consists of preen gland. Preen gland is sebaceous gland which is present in the dorsal region of the tail, is responsible to provide water proofing and antiparasitic effect. Thus, the correct answer is option A.