Ovenbird (family)


Ovenbirds or furnariids are a large family of small suboscine passerine birds found from Mexico and Central to southern South America. They form the family Furnariidae. This is a large family containing around 315 species and 70 genera. The ovenbird (Seiurus aurocapilla), which breeds in North America, is not a furnariid – rather it is a distantly related bird of the wood warbler family, Parulidae.

The ovenbirds are a diverse group of insectivores which get their name from the elaborate, vaguely "oven-like" clay nests built by the horneros, although most other ovenbirds build stick nests or nest in tunnels or clefts in rock.[1] The Spanish word for "oven" (horno) gives the horneros their name. Furnariid nests are always constructed with a cover, and up to six pale blue, greenish or white eggs are laid. The eggs hatch after 15 to 22 days, and the young fledge after a further 13 to 20 days.[2]

They are small to medium-sized birds, ranging from 9 to 35 cm in length.[2] While individual species often are habitat specialists, species of this family can be found in virtually any Neotropical habitat, ranging from city parks inhabited by rufous horneros, to tropical Amazonian lowlands by many species of foliage-gleaners, to temperate barren Andean highlands inhabited by several species of miners. Two species, the seaside and the surf cinclodes, are associated with rocky coasts.

The woodcreepers (formerly Dendrocolaptidae) were merged into this family, following analysis of sequences.[3] While confirming the overall phylogenetic pattern, other scientists instead opted for maintaining the woodcreepers as a separate family, while splitting the ovenbirds (as traditionally defined) into two families, Furnariidae and Scleruridae.[4]

The cladogram below showing the subfamilies of the ovenbirds is based on a molecular genetic study by Carl Oliveros and collaborators published in 2019.[5] The species numbers are from the list maintained by the International Ornithologists' Union (IOC).[6]

The systematics of the Dendrocolaptinae were reviewed by Raikow (1994)[7] based on morphology and by Irestedt et al. (2004)[8] based on analysis of nuclear and mitochondrial DNA. Using the latter approach, the suspected major lineages of the Furnariinae (foliage-gleaners, spinetails, and true ovenbirds) were confirmed, but some new lineages were discovered and the relationships of several genera had to be revised.[9][10]


Rufous hornero (Furnarius rufus) nest, showing the entrance chamber and dividing wall to breeding chamber