Otherwise known as the true ovenbirds, the horneros are widely known for their elaborate oven-shaped mud nests, frequently seen adorning fence posts and telephone poles (2) (3) (4). Although these are only used once, they can take several years to disintegrate, and are often appropriated by other birds after the horneros vacate (2). In addition to their architectural skills, male and female pairs are known for their highly coordinated duets (2) (5). Breeding pairs remain together throughout the year, and begin the arduous task of building the nest several months before egg-laying. Around three to four eggs are laid between August and December and are incubated by both parent birds for 16 to 17 days before hatching. Similarly, both sexes feed the nestlings, which fledge the nest at 24 to 26 days old (6).
The rufous hornero is a ground forager, with most of its prey consisting of insects and their larvae, as well as other invertebrates (6), and occasionally vegetable matter such as seeds and fruit (7). In common with other ovenbirds, the rufous hornero is comparatively fearless of humans (8), and is often seen in built up areas, strutting along the ground or perched on a commanding vantage point (2).