Red-Tailed Tropicbird (Phaethon rubricauda)

Indonesian – Burung buntut satek merah

Description: largish (46 cm excluding tail streamers) white or pinkish tropicbird. A white and pink form occur. Adults can be distinguished from White-tailed Tropicbird by orange bill, less black in plumage and red tail streamers (very difficult to see from a moving boat). Immature distinguished by black bill. Iris –dark; feet –blue with black webs.

Voice: Ratchet-like “pirr-igh” call in flight, and loud screams at nest.

Distribution and status: tropical and sub-tropical Indian and Pacific oceans. Does not breed in our area but occasional vagrants may be brought close to the Javan by bad weather.

Habits: keeps well to sea. Flight similar to white-tailed Tropicbird. Partly nocturnal.

Diet: Squids and fish.

Race: P.r. westralis

White-Tailed Tropicbird (Phaeton lepturus)

Indonesian-Burung buntut satek putih

Description: medium-sized (41 cm excluding tail streamers) white seabird with trailing, long, white tail streamers. Adult: mainly white with black eyebrow, black wing tips and black bar on upperwing. Immature: lacks stremers and has black barring on upperparts. Iris –dark; bill –yellow; feet –greyish with black webs.

Voice: Rattling ‘tetetete’ and ‘tik’ call in flight and loud screams at nest.

Distribution and status : Tropical and sub-tropical seas of Atlantic. Indian and Pacific oceans. In Bali there are important breeding colonies in the cliffs on Nusa Penida and probably at Ulu Watu. Occasional strays are seen in Javan waters. Breeds in Rongkop (C. Java) and probably Nusa Barung (E. Java).

Habits: flies high over sea with fast wingbeat circling, or twisting and turning sharply to plunge onto food in the sea. Swims in sea with tail cocked. Partly nocturnal.

Diet: Small squids that rise to the sea surface at night, also fish.

Breeding: nests in cliff holes in the sheer cliffs of Nusa Penida. April.

Race: P.l.fulvus