Creamy-bellied Gnatcatcher

The creamy-bellied gnatcatcher (Polioptila lactea) is a species of bird in the family Polioptilidae. It is found in Argentina, Brazil, and Paraguay. == Taxonomy and systematics == The creamy-bellied gnatcatcher is monotypic. It has occasionally been thought to be conspecific with the tropical gnatcatcher (P. plumbea). == Description == The creamy-bellied gnatcatcher is 10 to 12 cm (3.9 to 4.7 in) long and weighs approximately 7 g (0.25 oz). The male has a bluish-black cap and white lores and supercilium. Its upperparts are dark slate blue. Its long tail's central feathers are black and the outermost white with those between being black and white. Its cheeks and underparts are pale yellowish transitioning to white on the lower belly. The female and juvenile are similar to the male but with slate gray crowns. == Distribution and habitat == The creamy-bellied gnatcatcher is found in southern Brazil from Mato Grosso do Sul and Rio de Janeiro states south to Santa Catarina state and adjoining southeastern Paraguay and northeastern Argentina. It inhabits several biomes including open humid forest and its edges, temperate rainforest, semi-deciduous forest, and scrublands. It elevation it usually occurs below 400 m (1,300 ft). == Behavior == === Feeding ===…