The razor-billed curassow was originally placed in genus Crax but genetic data confirm that Mitu is a valid genus. It was for a time treated as a subspecies of Alagoas curassow (Mitu mitu) and they are now treated as sister species.[4] The razor-billed curassow is monotypic.[2]
Descriptionedit
The razor-billed curassow is 83 to 89 cm (2.7 to 2.9 ft) long and males weigh about 3,860 g (8.5 lb). Their plumage is mostly black with a strong purplish blue gloss. The lower belly and undertail coverts are chestnut and the tips of the tail feathers white. It has a tall ragged crest. Its large bright red bill is laterally compressed, which gives the species its common name.[5]
Distribution and habitatedit
The razor-billed curassow is found in much of Amazonia, mostly south of the Amazon River in eastern Peru, northern Bolivia, and northern Brazil all the way to the Atlantic coast. It is found north of the Amazon in southeastern Colombia, extreme northeastern Peru, and Brazil as far east as the Rio Negro. It inhabits lowland evergreen forest, primarily terra firme but also gallery and várzea forests and along the margins of lakes and streams. In elevation it ranges from sea level to 1,350 m (4,400 ft) though it may only locally exceed 1,000 m (3,300 ft).[5]
Behavioredit
Feedingedit
The razor-billed curassow typically forages alone or in pairs on the forest floor. Its diet is mostly fallen fruits and also includes leaves, insects, fungi, and small vertebrates.[5]
Breedingedit
The razor-billed curassow is occasionally polygynous and might be regularly so. In northern Peru at least, its nesting season spans from November to February. One nest was described as "a perfect round cup" of branches, lianas, and leaves. The clutch size is two or three eggs.[5]
Songs and calls
Listen to razor-billed curassow on xeno-canto
Vocalizationedit
The razor-billed curassow's song is " "a series of deep booming notes, the first 3 rising, the last 2 even at a slightly higher pitch: BMMM mmMMM... mmMMM'BMMM-BMMM, sometimes followed after pause by sharp BMM!." It is sung from a perch at any time of day but most frequently before and at dawn and during the breeding season. Its calls include "rising whistles and popping notes" and "soft pweet calls".[5]
Statusedit
The IUCN has assessed the razor-billed curassow as being of Least Concern.[1] It has a very large range. However, its population has not been quantified and is believed to be declining, primarily because of heavy hunting pressure.[5]
^ abGill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)". Retrieved July 14, 2021.
^Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved August 24, 2021
^Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved 24 August 2021
^ abcdefUdoye, K. C. and T. S. Schulenberg (2020). Razor-billed Curassow (Mitu tuberosum), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rabcur2.01 retrieved October 2, 2021
January 01, 1970
razor, billed, curassow, razor, billed, curassow, mitu, tuberosum, species, bird, family, cracidae, chachalacas, guans, curassows, found, bolivia, brazil, colombia, peru, conservation, status, near, threatened, iucn, scientific, classification, domain, eukaryo. The razor billed curassow Mitu tuberosum is a species of bird in the family Cracidae the chachalacas guans and curassows It is found in Bolivia Brazil Colombia and Peru 2 3 Razor billed curassow Conservation status Near Threatened IUCN 3 1 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Aves Order Galliformes Family Cracidae Genus Mitu Species M tuberosum Binomial name Mitu tuberosum Spix 1825 Distribution of the razor billed curassow Synonyms Crax tuberosa Spix 1825 Contents 1 Taxonomy and systematics 2 Description 3 Distribution and habitat 4 Behavior 4 1 Feeding 4 2 Breeding 4 3 Vocalization 5 Status 6 ReferencesTaxonomy and systematics editThe razor billed curassow was originally placed in genus Crax but genetic data confirm that Mitu is a valid genus It was for a time treated as a subspecies of Alagoas curassow Mitu mitu and they are now treated as sister species 4 The razor billed curassow is monotypic 2 Description editThe razor billed curassow is 83 to 89 cm 2 7 to 2 9 ft long and males weigh about 3 860 g 8 5 lb Their plumage is mostly black with a strong purplish blue gloss The lower belly and undertail coverts are chestnut and the tips of the tail feathers white It has a tall ragged crest Its large bright red bill is laterally compressed which gives the species its common name 5 Distribution and habitat editThe razor billed curassow is found in much of Amazonia mostly south of the Amazon River in eastern Peru northern Bolivia and northern Brazil all the way to the Atlantic coast It is found north of the Amazon in southeastern Colombia extreme northeastern Peru and Brazil as far east as the Rio Negro It inhabits lowland evergreen forest primarily terra firme but also gallery and varzea forests and along the margins of lakes and streams In elevation it ranges from sea level to 1 350 m 4 400 ft though it may only locally exceed 1 000 m 3 300 ft 5 Behavior editFeeding edit The razor billed curassow typically forages alone or in pairs on the forest floor Its diet is mostly fallen fruits and also includes leaves insects fungi and small vertebrates 5 Breeding edit The razor billed curassow is occasionally polygynous and might be regularly so In northern Peru at least its nesting season spans from November to February One nest was described as a perfect round cup of branches lianas and leaves The clutch size is two or three eggs 5 nbsp Songs and calls Listen to razor billed curassow on xeno canto Vocalization edit The razor billed curassow s song is a series of deep booming notes the first 3 rising the last 2 even at a slightly higher pitch BMMM mmMMM mmMMM BMMM BMMM sometimes followed after pause by sharp BMM It is sung from a perch at any time of day but most frequently before and at dawn and during the breeding season Its calls include rising whistles and popping notes and soft pweet calls 5 Status editThe IUCN has assessed the razor billed curassow as being of Least Concern 1 It has a very large range However its population has not been quantified and is believed to be declining primarily because of heavy hunting pressure 5 References edit a b BirdLife International 2021 Razor billed Curassow Mitu tuberosum IUCN Red List of Threatened Species 2021 Retrieved 2 October 2021 a b Gill F Donsker D Rasmussen P July 2021 IOC World Bird List v 11 2 Retrieved July 14 2021 Remsen J V Jr J I Areta E Bonaccorso S Claramunt A Jaramillo D F Lane J F Pacheco M B Robbins F G Stiles and K J Zimmer Version 24 August 2021 Species Lists of Birds for South American Countries and Territories https www museum lsu edu Remsen SACCCountryLists htm retrieved August 24 2021 Remsen J V Jr J I Areta E Bonaccorso S Claramunt A Jaramillo D F Lane J F Pacheco M B Robbins F G Stiles and K J Zimmer Version 24 August 2021 A classification of the bird species of South America American Ornithological Society https www museum lsu edu Remsen SACCBaseline htm retrieved 24 August 2021 a b c d e f Udoye K C and T S Schulenberg 2020 Razor billed Curassow Mitu tuberosum version 1 0 In Birds of the World T S Schulenberg Editor Cornell Lab of Ornithology Ithaca NY USA https doi org 10 2173 bow rabcur2 01 retrieved October 2 2021 Retrieved from https en wikipedia org w index php title Razor billed curassow amp oldid 1222369694, wikipedia, wiki, book, books, library,
