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Chestnut-tipped toucanet
Species of bird From Wikipedia, the free encyclopedia
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The chestnut-tipped toucanet (Aulacorhynchus derbianus) is a near-passerine bird in the toucan family Ramphastidae.[2] It is found in Bolivia, Colombia, Ecuador, and Peru.[3]
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Taxonomy and systematics
The chestnut-tipped toucanet is monotypic.[2] However, what is now the tepui toucanet (A. whitelianus) and it were for a time considered conspecific. They were separated by major taxonomic systems beginning in 2011.[4][5][6] The chestnut-tipped and groove-billed toucanets (A. sulcatus) form a superspecies.[7]
Description
The chestnut-tipped toucanet is 33 to 41 cm (13 to 16 in) long and weighs 141 to 262 g (5.0 to 9.2 oz). Its bill is deep red and black with a vertical white line at its base and grooves on the maxilla. (Some individuals have an all-black bill). The sexes are alike. Their plumage is generally green, with a bluish nape, a white throat, and wide chestnut tips on the tail feathers. The red-brown eye has some blue below it.[8]
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Distribution and habitat
The chestnut-tipped toucanet is found along the east slope of the Andes from extreme southern Colombia through Ecuador and Peru into western Bolivia as far as Cochabamba Department. It primarily inhabits subtropical montane cloudforest, but also tropical forest in Bolivia. In elevation it mostly ranges between 600 and 2,000 m (2,000 and 6,600 ft).[8]
Behavior
Movement
The chestnut-tipped toucanet is believed to be non-migratory.[8]
Feeding
The chestnut-tipped toucanet forages mostly in the canopy, typically in pairs but occasionally in groups as large as 10 individuals. Its diet is not known in detail but appears to be mostly fruits and their seeds with some insects also taken.[8]
Breeding
The chestnut-tipped toucanet's breeding season appears to be from May to October. Nothing else is known about its breeding biology.[8]
Vocalization
The chestnut-tipped toucanet's song is an "often long series of grrrrump to kwuk notes", which pairs often sing together. It also makes "'ggg-rgg', 'ngg-ngg', and rattling 'bbdt-bbdt' notes."[8]
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Status
The IUCN has assessed the chestnut-tipped toucanet as being of Least Concern. It has a large range but its population size is not known and is believed to be decreasing. No immediate threats have been identified.[1] It is considered common in some limited areas but overall uncommon to rare in Ecuador and rare in Peru.[8]
References
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