ov·en·bird 
(ŭvən-bûrd′)
(ŭvən-bûrd′)n.
1. A thrushlike warbler (Seiurus aurocapilla) of the Americas, having a loud call and characteristically building a domed, oven-shaped nest on the ground. Also called teacher bird.
2. Any of various South American birds of the family Furnariidae, especially of the genus Furnarius.
[From its oven-shaped nest.]