Patricio Robles Gil / Pale-legged Hornero (Furnarius leucopus) male and female birds building their mud nest on a branch. Parana, Southern Brazil.

Luiz Claudio Marigo / Rufous hornero / Ovenbird at mud nest {Furnarius rufus} Mato Grosso, Brazil

Luiz Claudio Marigo / Ochre-breasted foliage-gleaner (Philydor lichtensteini) perched in Atlantic Rainforest, Serrinha do Alambari Environmental Protection Area, Rio de Janeiro State, Southeastern Brazil.

Luiz Claudio Marigo / Araucaria tit-spinetail (Leptasthenura setaria), a bird typical of Araucaria pine trees (Araucaria angustifolia) in the Atlantic Rainforest of the locality of Visconde de Maua¡, municipality of Resend...

Patricio Robles Gil / Pale-legged Hornero (Furnarius leucopus) male and female birds building their mud nest on a branch. Parana, Southern Brazil.

Luiz Claudio Marigo / Striated softtail (Thripophaga macroura) perched in tree, Atlantic Rainforest in the municipality of Boa Nova, southeastern Bahia State, Brazil. September. Endangered, endemic

Roy Mangersnes / Rufous Hornero (Furnarius rufus) walking, Buenos Aires, Argentina, South America. November.

Roy Mangersnes / Rufous hornero / Ovenbird (Furnarius rufus) in the Andean mountains near Valle Nevado, Santiago, Chile. October.

Juan Carlos Munoz / Ovenbird / Rufous honero {Furnarius rufus} singing perched on large mud nest, Pantanal NP, Mato grosso, Brazil

Juan Carlos Munoz / Ovenbird / Rufous honero {Furnarius rufus} singing perched on large mud nest, Pantanal NP, Mato grosso, Brazil

Luiz Claudio Marigo / Rufous hornero / Ovenbird at nest {Furnarius rufus} Mato Grosso, Brazil

Luiz Claudio Marigo / Russet-mantled foliage gleaner (ovenbird) at nest in termite mound, Brazil. Endangered.

Luiz Claudio Marigo / Russet-mantled foliage gleaner (ovenbird) at nest in termite mound, Brazil. Endangered.

Hermann Brehm / Rufous hornero / Ovenbird at entrance to mud nest {Furnarius rufus} Pantanal, Brazil

Pete Oxford / Rufous hornero / Ovenbird {Furnarius rufus} building mud nest, Pantanal, Brazil