| Olive-backed tanager | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Mitrospingidae |
| Genus: | Mitrospingus |
| Species: | M. oleagineus |
| Binomial name | |
| Mitrospingus oleagineus (Salvin, 1886) | |
 | |
The olive-backed tanager (Mitrospingus oleagineus) is a species of bird in the family Mitrospingidae. It is found in Brazil, Guyana, and Venezuela. [2] [3]
The olive-backed tanager and the three other species in family Mitrospingidae were previously placed in family Thraupidae, the "true" tanagers. A 2013 publication detailed how they did not belong there and proposed the new family for them. [4] The North and South American Classification Committees of the American Ornithological Society accepted the new placement in July 2017 and March 2019, respectively. [5] [6] The International Ornithological Committee (IOC) followed suit in January 2018. [7]
The olive-backed tanager has two subspecies, the nominate Mitrospingus oleagineus oleagineus and M. o. obscuripectus. [2]
The olive-backed tanager is 19 cm (7.5 in) long and weighs 35.5 to 46 g (1.25 to 1.62 oz). The nominate subspecies' forehead and face are dark gray and the throat paler gray. The head, mantle, and back are deep olive green; the breast is olive-yellow becoming brighter and more yellow on the belly. M. o. obscuripectus is very similar but the upper parts are a darker olive. The juvenile is duller and plainer than the adult and does not have the gray "mask". [3]
The olive-backed tanager has a very small range in the area where Venezuela, Guyana, and Brazil meet. The nominate subspecies is the more eastern and is found in extreme southeastern Venezuela and the adjacent areas of west-central Guyana and far northern Brazil. M. o. obscuripectus is found in the southeastern part of Venezuela's Bolívar state and probably in adjoining Brazil. [3]
The olive-backed tanager inhabits the slopes of tepuis (isolated mesas) in humid and wet forest, mostly in the interior of primary or secondary forest but also at the edges. In elevation it ranges between 900 and 1,800 m (3,000 and 5,900 ft). [3]
The olive-backed tanager forages by hopping through the understorey or mid level vegetation, primarily for insects but also for fruit. It also catches prey in "short clumsy sallies". It typically forages in flocks of its own species that may number up to 20 individuals, though it may join mixed-species flocks or be joined by other species. [3]
No information about the olive-backed tanager's breeding phenology has been published. [3]
The olive-backed tanager's song is rendered as "zweee-eet?" or "zwee-er-eet?" that is sometimes repeatedly sounded . It makes several thin, high-pitched calls while foraging . [3]
The IUCN has assessed the olive-backed tanager as being of Least Concern. [1] It appears to be fairly common and much of its range is within Venezuela's Canaima National Park. It is "[u]nlikely to face near-term threats...". [3]
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The dusky-faced tanager is a species of bird in the family Mitrospingidae. It is found in Colombia, Costa Rica, Ecuador, and Panama.
The olive-green tanager is a species of bird in the family Mitrospingidæ. It is endemic to Brazil.
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The rose-throated tanager is a medium-sized songbird in the family Cardinalidae, the cardinals or cardinal grosbeaks. Endemic to the Yucatán Peninsula in Central America, it is found in Belize, Guatemala, and Mexico. The male has greyish plumage with a deep rose throat and crown, while the female is similar but for a yellow crown and throat.
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Todd's nightjar is a species of nightjar in the family Caprimulgidae. It is found in Brazil, Colombia, Guyana, and Venezuela.
The Mitrospingidae is a family of passerine birds. It consists of three genera and four species. The family is found in South America and southern Central America. The family was identified in 2013, and consists of birds that have been traditionally placed in the family Thraupidae. The family was adopted by the American Ornithological Society in their 58th supplement of their checklist in 2017 and in the online list of birds maintained by Frank Gill, Pamela Rasmussen and David Donsker on behalf of the International Ornithological Committee (IOC).
