List of Phaethontiformes by population

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This is a list of Phaethontiformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.

This list follows IUCN classifications for species names. Where IUCN classifications differ from other ornithological authorities, alternative names are noted. The IOC World Bird List (version 15.1) recognizes 3 species of Phaethontiformes. [1] IUCN/BirdLife International have assessed the populations of all members of this order.

Species by global population

Common name Binomial name Population Status TrendNotesImage
Red-billed tropicbird Phaethon aethereus16,000-30,000 [2] LC [2] Decrease2.svg [2] 20180811-Red-billed tropicbird at Plaza Sur (0374).jpg
Red-tailed tropicbird Phaethon rubricauda70,000 [3] LC [3] Decrease2.svg [3] Phaethon rubricauda 67343473.jpg
White-tailed tropicbird Phaethon lepturus400,000 [4] LC [4] Decrease2.svg [4] White-tailed Tropicbird (34334497543).jpg
  1. ↑ "Kagu, Sunbittern, tropicbirds, loons, penguins – IOC World Bird List". www.worldbirdnames.org. Retrieved 2025-12-22.
  2. 1 2 3 BirdLife International (2019). "Phaethon aethereus". IUCN Red List of Threatened Species . 2019 e.T22696637A155736224. doi: 10.2305/IUCN.UK.2019-3.RLTS.T22696637A155736224.en . Retrieved 2025-12-22.
  3. 1 2 3 BirdLife International (2020). "Phaethon rubricauda". IUCN Red List of Threatened Species . 2020 e.T22696641A163889221. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22696641A163889221.en . Retrieved 2025-12-22.
  4. 1 2 3 BirdLife International (2020). "Phaethon lepturus". IUCN Red List of Threatened Species . 2020 e.T22696645A163887639. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22696645A163887639.en . Retrieved 2025-12-22.
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