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Brown-backed Antwren Epinecrophylla fjeldsaai

Sections

Behavior

Behavior

Brown-backed Antwren forages in low vegetation, vine tangles, and palm/heliconia swamps, specializing on searching dead leaves suspended off the ground (Krabbe et al. 1999, Ridgely and Greenfield 2001a), though it will also take prey from live leaves, twigs, and epiphytes (Darrah, unpublished data; Buitrón-Jurado, unpublished data). This species obtains prey primarily by gleaning or probing from a perch or hanging upside-down to reach surfaces below its perch, but will occasionally use wing- or leg-powered hopping to reach prey (Darrah, unpublished data; Buitrón-Jurado, unpublished data). This species perches on small branches, stems, vines, or dead leaves while foraging. Mean foraging height estimated from observations of six Brown-backed Antwrens was 1.4 m (1.1 SD; Darrah, unpublished data). This species generally forages at heights lower than that of Rufous-tailed Antwren (Epinecrophylla erythrura) when present in the same mixed-species flocks (Ridgely and Greenfield 2001a).

Territoriality

Brown-backed Antwren maintains territories occupied by a pair and dependent young. No data exist on territory size or defense behavior.

Sexual Behavior

Brown-backed Antwren is presumably monogamous like other Epinecrophylla antwrens. No information reported on duration of pair bonding, extra-pair copulations, or courtship behavior.

Social and interspecific behavior

None reported.

Predation

No reports of predation on this species.

Recommended Citation

Brown-backed Antwren (Epinecrophylla fjeldsaai), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/bnbant1