Editing Hornbill (section)

==Distribution and habitat==
[[File:Sri Lanka Grey Hornbill.JPG|thumb|As its name suggests, the [[Sri Lanka grey hornbill]] is grey and endemic to [[Sri Lanka]].]]
The Bucerotidae include about 55 living [[species]], though a number of [[cryptic species]] may yet be split, as has been suggested for the [[red-billed hornbill]]. Their distribution includes [[Sub-Saharan Africa]] and the [[Indian subcontinent]] to the Philippines and the [[Solomon Islands]], but no genus is found in ''both'' Africa and Asia. Most are arboreal birds, but the large ground hornbills (''[[Bucorvus]]''), as their name implies, are terrestrial birds of open [[savanna]]. Of the 24 species found in Africa, 13 are birds of the more open woodlands and savanna, and some occur even in highly arid environments; the remaining species are found in dense forests. This contrasts with Asia, where a single species occurs in open savanna and the remainder are forest species.<ref name ="HBW"/> The [[Indian subcontinent]] has 10 species of hornbills, of which 9 are found in India and adjoining countries, while the [[Sri Lanka grey hornbill]] is restricted to the island. The most common widespread species in the Indian subcontinent is the Indian grey hornbill.
According to the [[International Union for Conservation of Nature]] (IUCN), [[Indonesia]] has 13 hornbill species: 9 of them exist in [[Sumatra]], and the rest exist in [[Sumba]], [[Sulawesi]], [[West Papua (region)|Papua]] and [[Kalimantan]]. Kalimantan has the same hornbill species as Sumatra, except that the great hornbill is not found there.<ref>{{cite web |last=Maruli |first=Aditia |title=Sumba hornbills under increasing threat of extinction |url=http://www.antaranews.com/en/news/72874/sumba-hornbills-under-increasing-threat-of-extinction |website=Antara News |date=2011-06-18 |access-date=2014-03-09 }}</ref> Meanwhile, the neighboring archipelago of the [[Philippines]] has 11 hornbill species, all of which are endemic to certain small islands of the country, making them one of the most endangered hornbills in the world.<ref>{{cite web | url=https://birdwatch.ph/2021/05/09/hornbills-of-the-philippines/ | title=Hornbills of the Philippines – Wild Bird Club of the Philippines | date=9 May 2021 }}</ref> In the [[Neogene]] (at least in the late [[Miocene]]), hornbills inhabited North Africa and South Europe. Their remains have been found in [[Morocco]]<ref name="Brunet, J 1971">Brunet, J. 1971. Oiseaux miocènes de Beni Mellal (Maroc); un complément à leur étude. Notes Mem. Serv. geol. Maroc, 31 (237): 109–111.</ref> and [[Bulgaria]].<ref name="Boev, Z. 2007">Boev, Z., D. Kovachev 2007. Euroceros bulgaricus gen. nov., sp. nov. from Hadzhidimovo (SW Bulgaria) (Late Miocene) – the first European record of Hornbills (Aves: Coraciiformes). – Geobios, 40: 39–49.</ref> The oldest known hornbill is from the Early Miocene of Uganda, around 19 million years ago, which is similar to modern ''[[Tockus]].''<ref>{{Cite journal |last1=Riamon |first1=Ségolène |last2=Pickford |first2=Martin |author3-link=Brigitte Senut |last3=Senut |first3=Brigitte |last4=Louchart |first4=Antoine |date=2021 |title=Bucerotidae from the early Miocene of Napak, Uganda (East Africa): the earliest hornbill with a modern-type beak |url=https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.12907 |journal=Ibis |language=en |volume=163 |issue=2 |pages=715–721 |doi=10.1111/ibi.12907 |issn=1474-919X |s2cid=230632701}}</ref>