List of Bucerotiformes by population

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This is a list of Bucerotiformes 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.

Contents

This list is incomprehensive, as not all Bucerotiformes have had their numbers quantified.

This list follows IUCN classifications for species names. Where IUCN classifications differ from other ornithological authorities, alternative names are noted.

Some species listed as members of Bucerotiformes are extinct:

Species by global population

Common name Binomial name Population Status TrendNotesImage
Sulu hornbill Anthracoceros montani1 – 49 [2] CR [2] Decrease2.svg [2] Sulu Hornbill.jpg
Mindoro hornbill Penelopides mindorensis250 - 999 [3] EN [3] Decrease2.svg [3] Mindoro Hornbill (male).jpg
Narcondam hornbill Rhyticeros narcondami300 - 650 [4] VU [4] Steady2.svg [4] Narcondam Hornbill DSCN1242 15.jpg
Sumba hornbill Rhyticeros everetti1,000 - 2,000 [5] EN [5] Decrease2.svg [5] Sumba hornbill (Rhyticeros everetti) - crop 01.png
Rufous-headed hornbill

(Walden's hornbill)

Rhabdotorrhinus waldeni1,000 - 3,000 [6] EN [6] Decrease2.svg [6] Total population is estimated to be 1,500-5,000 individuals. [6] Writhed-billed Hornbill (Bentley).jpg
Visayan hornbill Penelopides panini1,200 [7] EN [7] Decrease2.svg [7] Total population is estimated to be at least 1,800 individuals. [7]

Note that IOC taxonomy splits an additional species, the Samar hornbill, from this species. [8]

IUCN/BirdLife International maintain both species within P. panini. [9] || Penelopides panini pair2.jpg

Plain-pouched hornbill Rhyticeros subruficollis2,500 - 5,000 [10] VU [10] Decrease2.svg [10] Total population is estimated to be, at minimum, 4,000 individuals. [10] Rhyticeros subruficollis.jpg
Tickell's brown hornbill Anorrhinus tickelli2,500 - 9,999 [11] NT [11] Decrease2.svg [11] Tickell's brown hornbill (33419252811).jpg
Rufous-necked hornbill Aceros nipalensis7,000 - 10,000 [12] VU [12] Decrease2.svg [12] Total population is estimated to be 12,000-15,000 individuals. [12] Rufous-necked Hornbill.jpg
Malabar pied hornbill Anthracoceros coronatus7,200 - 72,000 [13] NT [13] Decrease2.svg [13] Best estimate for number of mature individuals is 7,200-25,000. [13] Malabar pied hornbill (Anthracoceros coronatus) female in flight.jpg
Yellow-casqued hornbill Ceratogymna elata8,000 - 9,000 [14] VU [14] Decrease2.svg [14] Total population has been previously estimated as 12,533 individuals. This may be an underestimate, given the size of remaining suitable habitat. [14] Ceratogymna elata -Hong Kong Zoo-8a.jpg
Great hornbill Buceros bicornis13,000 - 27,000 [15] VU [15] Decrease2.svg [15] Total population is estimated (precautionary) to be 23,000 - 71,000 individuals. [15] Female Great Hornbill by Shantanu Kuveskar.jpg
Palawan hornbill Anthracoceros marchei20,000 - 49,999 [16] VU [16] Decrease2.svg [16] Anthracoceros marchei -Palawan-8.jpg
Common hoopoe

(Eurasian hoopoe)

Upupa epops5,000,000 - 10,000,000 [17] LC [17] Decrease2.svg [17] Values given are for total population. [17] Eurasian hoopoe by Gunjan Pandey.jpg


See also

References

  1. BirdLife International (2024). "Upupa antaios". IUCN Red List of Threatened Species . 2024 e.T22728670A262288483. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22728670A262288483.en .
  2. 1 2 3 BirdLife International. (2020). "Anthracoceros montani". IUCN Red List of Threatened Species . 2020 e.T22682447A178062684. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682447A178062684.en . Retrieved 11 August 2025.
  3. 1 2 3 BirdLife International. (2020). "Penelopides mindorensis". IUCN Red List of Threatened Species . 2020 e.T22682491A184680868. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682491A184680868.en . Retrieved 11 August 2025.
  4. 1 2 3 BirdLife International. (2020). "Rhyticeros narcondami". IUCN Red List of Threatened Species . 2020 e.T22682531A182554475. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682531A182554475.en . Retrieved 11 August 2025.
  5. 1 2 3 BirdLife International. (2020). "Rhyticeros everetti". IUCN Red List of Threatened Species . 2020 e.T22682535A184201170. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682535A184201170.en . Retrieved 11 August 2025.
  6. 1 2 3 4 BirdLife International (2025). "Rhabdotorrhinus waldeni". IUCN Red List of Threatened Species . 2025 e.T22682517A274594116. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22682517A274594116.en .
  7. 1 2 3 4 BirdLife International. (2020). "Penelopides panini". IUCN Red List of Threatened Species . 2020 e.T22682494A184683355. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682494A184683355.en . Retrieved 11 August 2025.
  8. "Mousebirds, Cuckoo Roller, trogons, hoopoes, hornbills – IOC World Bird List". www.worldbirdnames.org. Retrieved 2026-01-01.
  9. Handbook of the Birds of the World and BirdLife International Digital Checklist of the Birds of the World: Version 10. BirdLife International. October 2025.
  10. 1 2 3 4 BirdLife International (2025). "Rhyticeros subruficollis". IUCN Red List of Threatened Species . 2025 e.T22682541A207290329. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22682541A207290329.en .
  11. 1 2 3 BirdLife International. (2020). "Anorrhinus tickelli". IUCN Red List of Threatened Species . 2020 e.T22731946A183158357. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22731946A183158357.en . Retrieved 11 August 2025.
  12. 1 2 3 4 BirdLife International. (2020). "Aceros nipalensis". IUCN Red List of Threatened Species . 2020 e.T22682510A176267243. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682510A176267243.en . Retrieved 11 August 2025.
  13. 1 2 3 4 BirdLife International (2025). "Anthracoceros coronatus". IUCN Red List of Threatened Species . 2025 e.T22682433A184946848. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22682433A184946848.en .
  14. 1 2 3 4 BirdLife International (2025). "Ceratogymna elata". IUCN Red List of Threatened Species . 2025 e.T22682627A280610032. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22682627A280610032.en .
  15. 1 2 3 4 BirdLife International. (2020). "Buceros bicornis". IUCN Red List of Threatened Species . 2020 e.T22682453A184603863. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682453A184603863.en . Retrieved 11 August 2025.
  16. 1 2 3 BirdLife International. (2021). "Anthracoceros marchei". IUCN Red List of Threatened Species . 2021 e.T22682444A205515479. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22682444A205515479.en . Retrieved 11 August 2025.
  17. 1 2 3 4 BirdLife International. (2020). "Upupa epops". IUCN Red List of Threatened Species . 2020 e.T22682655A181836360. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22682655A181836360.en . Retrieved 11 August 2025.