The washer-masked (Fluvicola nengeta) also known as washerwoman, little bride, viuvinha (Zona da Mata MG), white-maria, maria-handkerchief, or pigeon bertolinha-of-souls is a South American passerine bird belonging to the family of flycatchers .
The distribution of this bird is curious, because there are two very distant populations, one in eastern Brazil and another in northwest South America Brazil's population, formerly restricted to ponds and rivers in the Wilderness and Wasteland of the Northeast, is expanding. The Atlantic Forest, which apparently represented a natural barrier for this species, was losing ground to pasture and crops that are more similar to semi-arid than the Forest Umbrófila, allowing the expansion of this species. Other explanations involve increasing the number of dammed rivers in the southeast and climate change. The fact is that this nice bird being registered each day to the south. In the 90's were made the first records of this species in São Paulo and today are already registered birds breed in Santa Catarina.