Black-bellied Wren

The black-bellied wren (Pheugopedius fasciatoventris) is a species of bird in the family Troglodytidae. It is found in Colombia, Costa Rica, and Panama. == Taxonomy and systematics == The black-bellied wren has three subspecies, the nominate Pheugopedius fasciatoventris fasciatoventris, P. f. melanogaster, and P. f. albigularis. == Description == Male black-bellied wrens weigh 23.5 to 34.5 g (0.83 to 1.22 oz) and females 19.5 to 28.5 g (0.69 to 1.01 oz). Adults of all three subspecies have a rich chestnut back and tail; the latter has black bars. They have a white supercilium of varying size above a grayish face and are white on the chin, throat, and breast. All three have a black belly, but that of P. f. melanogaster is unmarked while those of the other two subspecies have thin white bars. == Distribution and habitat == P. f. melanogaster is the northernmost subspecies; it is found from the Gulf of Nicoya in western Costa Rica through western Panama to the Canal Zone. P. f. albigularis is found from the Canal Zone into Colombia's Chocó Department. The nominate P. f. fasciatoventris is found in northwestern and central Colombia east to the foothills of the Sierra Nevada de Santa…