Ingo Arndt / Golden Bosun / Tropicbird (Phaethon lepturus fulvus) in flight, endemic to Christmas Island, Indian Ocean, Australian Territory, November

Charlie Summers / Golden bosun bird (Phaethon lepturus fulvus) flying over settlement on Christmas Island, Australia.

Luis Quinta / Golden bosun (Phaethon lepturus) Principe Island, UNESCO World Heritage Site, Democratic Republic of Sao Tome and Principe, Gulf of Guinea.

Ingo Arndt / Golden Bosun / Tropicbird (Phaethon lepturus fulvus) in flight, endemic to Christmas Island, Indian Ocean, Australian Territory, November

Ingo Arndt / Golden Bosun / Tropicbird (Phaethon lepturus fulvus) in flight, endemic to Christmas Island, Indian Ocean, Australian Territory, November

Ingo Arndt / Golden Bosun / Tropicbird (Phaethon lepturus fulvus) on nest in hollow tree, endemic to Christmas Island, Christmas Island, Indian Ocean, Australian Territory

Martin Gabriel / White-tailed Tropicbird (Phaethon lepturus) in flight, Cousin Island, Republic of Seychelles

Martin Gabriel / White-tailed Tropicbird (Phaethon lepturus) on nest, Cousin Island, Republic of Seychelles

Martin Gabriel / White-tailed Tropicbird (Phaethon lepturus), covered with sticky seeds of Pisonia grandis, making the bird unable to fly, Aride Island, Republic of Seychelles

Martin Gabriel / White-tailed Tropicbird (Phaethon lepturus), a ranger removing sticky Pisonia grandis seeds, which made the bird unable to fly, Aride Island, Republic of Seychelles

Martin Gabriel / White-tailed Tropicbird (Phaethon lepturus), chick, Cousin Island, Republic of Seychelles

Robin Chittenden / White-tailed Tropicbird (Phaethon lepturus catesbyi) in flight, Tobago, Trinidad and Tobago, April