Ocellated antbird
The ocellated antbird is a species of antbird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Colombia, Costa Rica, Ecuador, Honduras, Nicaragua, and Panama.
Taxonomy and systematics
The ocellated antbird was formally described in 1861 by the American amateur ornithologist George Newbold Lawrence and given the binomial name Phlogopsis mcleannani. The ocellated antbird is now placed in the genus Phaenostictus that was erected in 1909 by the American ornithologist Robert Ridgway. The genus name is derived from the Ancient Greek phainō meaning "to display" and stiktos for "spotted". The specific epithet honors James McLeannan, a railway engineer on the Panama Canal Railway, who had collected the type specimen in Panama. Ridgway considered that the species was related to the genus Phlegopsis but that it differed in having a longer tail, rounded nostrils and a few other characters.Molecular phylogenetic studies of the antbird family, Thamnophilidae, have found that the ocellated antbird sits in the tribe Pithyini and its closest relatives are in genus Pithys.
The ocellated antbird is the only member of its genus and has three subspecies, the nominate P. m. mcleannani, P. m. saturatus, and P. m. pacificus.
Description
The ocellated antbird is a largish antbird with a long bill and tail. It is long and weighs about. Females tend to be slightly smaller than males and weigh slightly less. The species conforms with Bergmann's rule, with birds closer to the Equator having smaller wings and bills than those further away. Except for their slight size differences, the sexes are otherwise the same, and the subspecies have very little variation. Adults have a brown-gray crown, a rufous-brown nape, bright blue bare skin around the eye, and black cheeks and throat. Their back feathers and wing coverts are black with narrow rufous-brown edges that give a scaly appearance. Their rump is plain greenish brown, their flight feathers plain dark brown, and their tail black. Their breast is plain rufous-brown like their nape. Their belly feathers are black with wider rufous-brown edges than the back feathers and their vent area is reddish brown. Immature birds are similar to adults but with a darker cap and a less crisp pattern on their back and belly.Distribution and habitat
The ocellated antbird ranges from Honduras to Ecuador. Subspecies P. m. saturatus is the northernmost, found from northern and eastern Honduras south through Nicaragua and the Caribbean slope of Costa Rica into Bocas del Toro Province in extreme western Panama. The nominate subspecies is found from central and eastern Panama into northwestern and western Colombia as far as Valle del Cauca Department. P. m. pacificus is found from extreme southwestern Colombia into northwestern Ecuador's Esmeraldas Province.The ocellated antbird inhabits lowland and foothill evergreen forest, where it favors old-growth primary forest but occurs in mature secondary forest as well. It almost entirely remains in the forest undergrowth. In elevation it reaches in much of Central America though only to in Costa Rica. In Colombia it occurs below and in Ecuador mostly below but locally reaches.