Bibliographie :

www.beautyofbirds.com/hornbillspecies.html
www.hornbills.in
www.futura-sciences.com/planete/dossiers/animaux-toucans-guyane-droles-oiseaux-433/page/4/
https://twitter.com/ZoologiMY/status/767595750964416512/photo/1
https://books.google.fr/books?id=6f01BQAAQBAJ&pg=PA157&lpg=PA157&dq=fascination+for+hornbill&source=bl&ots=bmDK8khx_j&sig=ACfU3U1oMFycTwe9BhL0q4QVwK_R5w8zQA&hl=fr&sa=X&ved=2ahUKEwiCkKerq_HnAhUpyoUKHTBzD3cQ6AEwE3oECAkQAQ#v=onepage&q=fascination%20for%20hornbill&f=false
https://www.oaklandzoo.org/animals/malayan-wreathed-hornbill
https://www.larousse.fr/encyclopédie/vie-sauvage-calao/184552
http://factsanddetails.com/asian/cat68/sub435/item2430.html
https://static1.squarespace.com/static/5c1a9e03f407b482a158da87/t/5c3fa6058a922de4d8af47fc/1547675144337/Helmeted-Hornbill-BA24.pdf
https://blogs.scientificamerican.com/tetrapod-zoology/the-splendid-and-remarkable-anatomy-of-hornbills/
https://books.google.fr/books?id=UEFq4fZi1vYC&pg=PA577&lpg=PA577&dq=histoire+tribu+calao&source=bl&ots=RGUv2zcKew&sig=ACfU3U2mKscTyMPQnS6RuXPicR7_UiyWDA&hl=fr&sa=X&ved=2ahUKEwj-4PLP8_HnAhVGOhoKHX2OCy4Q6AEwBnoECAkQAQ#v=onepage&q=histoire%20tribu%20calao&f=false
https://www.lefigaro.fr/photos/2013/12/02/01013-20131202ARTFIG00482-hornbill-festival-a-la-decouverte-de-l-inde-tribale.php
https://books.google.fr/books?id=7192Y2zp9l8C&pg=PA110&lpg=PA110&dq=tribu+naga+calao+signification&source=bl&ots=VrEm5NggBj&sig=ACfU3U01XA9Fgd-aIZPV39BcKqiEyDecUA&hl=fr&sa=X&ved=2ahUKEwjb4rK0iPLnAhVIxoUKHR4bCawQ6AEwDnoECAwQAQ#v=onepage&q&f=falser
19
https://books.google.fr/books?id=DgZCBAAAQBAJ&pg=PA726&lpg=PA726&dq=Thomas+stamford+raffles+hornbill&source=bl&ots=dp0Yj_68z0&sig=ACfU3U0mGoaGE9U5vbWefV4amkuifn6U5g&hl=fr&sa=X&ved=2ahUKEwjgkuDTt_LnAhUO4YUKHUmAB-YQ6AEwDXoECAoQAQ#v=onepage&q&f=false
https://fr.wikipedia.org/wiki/Thomas_Stamford_Raffles
https://fr.wikipedia.org/wiki/Édouard_Verreaux
https://fr.wikipedia.org/wiki/Calao_charbonnier
https://fr.wikipedia.org/wiki/Calao_à_bec_rouge
https://fr.wikipedia.org/wiki/Calao_à_bec_rouge
https://fr.wikipedia.org/wiki/Calao_bicorne
https://books.google.fr/books?id=pUmH6d0xWWUC&pg=PA31&lpg=PA31&dq=carl+linnaeus+hornbill&source=bl&ots=tOC2-DQGQN&sig=ACfU3U0eLTUbJcmzXIlzEKX_Gm0KhuYh5Q&hl=fr&sa=X&ved=2ahUKEwip9M387PPnAhVHz4UKHT-2BiUQ6AEwAnoECAYQAQ#v=onepage&q&f=false
https://www.theborneopost.com/2015/07/12/the-magnificent-hornbills-of-sarawak/
https://fr.wikipedia.org/wiki/État_Chin
https://fr.wikipedia.org/wiki/Calao_pie
https://www.oiseaux.net/oiseaux/calao.rhinoceros.html
http://zootographe.canalblog.com/archives/2018/12/26/36970722.html
https://fr.wikipedia.org/wiki/Calao_rhinocéros#/media/Fichier:Sculpted_Bill_of_Rhinoceros_Hornbill_(Buceros_rhinoceros)_(8443956987).jpg
https://fr.wikipedia.org/wiki/Calao_papou Margaret F. Kinnaird and Timothy G. O’Brien 2007. The Ecology and Conservation of Asian Hornbills: Farmers of the Forest.

Crédits photo :

https://www.pinterest.ca/pin/556687203934360648/
https://www.gesser-images.com/imagebank/afrique/oiseaux/calao-a-bec-rouge/calao-a-bec-rouge-001-_d3_0613/?lang=fr
https://www.flickr.com/photos/laurentis/3302649791
http://moineaudeparis.com/oiseaux/autres/calao-charbonnier/
https://www.zoochat.com/community/media/black-hornbill.331994/
https://www.voyageschezlesoiseaux.eu/Galerie%20oiseaux%20officielle/Calao%20rhinoceros%20Buceros%20rhinoceros/img_9988_calao_rhinoceros_buceros_rhiniceros_07_12.html
www.oiseaux-birds.com/fiche-calao-rhinoceros.html
http://www.zootropical.com/portfolio-item/calao-papou/