Furnarius is a genus of birds commonly known as ovenbirds, found primarily in the Americas. These small to medium-sized birds are known for their unique nesting behavior, where they construct elaborate, oven-shaped nests made of mud and grass. Their habitats typically include grasslands, savannas, and open forests. Ovenbirds are primarily insectivorous, feeding on insects and other small invertebrates. They are known for their distinctive songs and calls, which vary among species. The genus includes several species, each adapted to specific environments, contributing to the rich biodiversity of their respective regions.