Dusky-faced Tanager
Mitrospingus cassinii
Subtly attractive tanager, fairly large with striking pale eye. Slaty gray back with olive-yellow crown and belly, dark blackish face. Usually seen in small flocks moving quickly through the understory of forests and edges, seldom sitting still for long. Sometimes joins mixed flocks. Conspicuous call is an explosive chipping, often given repeatedly.
Identification
The two subspecies are "very poorly differentiated." The adults are 18 to 18.5 cm (7.1 to 7.3 in) long and weigh 32 to 39 g (1.1 to 1.4 oz). Their crown and nape are mustard yellow. The face has a large black "mask". Their upper parts are lead gray. The throat is light gray transitioning to olive yellow on the breast and flanks and further to a gray-olive-yellow blend on the belly. The juvenile is similar but has less yellow on the crown and a buffy tinge to the underparts.
Taxonomy
The dusky-faced 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. The North and South American Classification Committees of the American Ornithological Society accepted the new placement in July 2017 and March 2019, respectively. The International Ornithological Committee (IOC) followed suit in January 2018.<p>The dusky-faced tanager has two subspecies, the nominate Mitrospingus cassinii cassinii and M. c. costaricensis.
- Scientific name
- Mitrospingus cassinii
- Authority
- (Lawrence, 1861)
- Order
- Passeriformes
- Family
- Mitrospingidae
- Genus
- Mitrospingus
Range and habitat
The dusky-faced tanager of subspecies M. c. costaricensis is found along the Caribbean coast from Costa Rica's Heredia Province south to extreme northwestern Panama. The nominate is found on both slopes of western Panama south through western Colombia to Guayas Province in Ecuador. It also occurs on the east slope of Colombia's Central Andes. <p>The dusky-face tanager inhabits low dense shrubbery, thickets, and second growth. It is found along forest edges, gaps in forest, and along forest streams and swampy areas. In Costa Rica it generally ranges up to 300 m (980 ft) but can be found up to 600 m (2,000 ft). Its upper limit in Panama is 1,200 m (3,900 ft). In Colombia it is mostly below 800 m (2,600 ft) though it has been recorded up to 1,100 m (3,600 ft). In Ecuador it can be found as high as 800 m (2,600 ft).
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
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