
Pectoral Antwren
NamePectoral Antwren
Common NamePectoral Antwren
Scientific NameHerpsilochmus pectoralis
FamilyThamnophilidae
Wingspan (cm)17
Length (cm)11.5
Weight (g)9
Plumage DetailsMales have a black crown and nape with white streaking, a prominent white supercilium, and a black eye-stripe. Their upperparts are grey with black streaking, and the black wings feature two distinct white wing-bars and white spotting. Underparts are whitish to pale grey. Females are similar but possess a rufous crown.
Vocalization / CallVocalizations typically consist of a high-pitched, accelerating series of notes, often described as a trill or 'tsee-tsee-tsee-tsee-tsee-tsee-tsee'.
Primary Dietinsectivore
Primary Habitatsforest
Conservation Statusnear-threatened
Geographic RangeEndemic to northeastern Brazil, primarily found in the states of Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe, and Bahia.
Identifying FeaturesSmall size, Black and white patterned plumage (male), Prominent white supercilium, Two distinct white wing-bars, Rufous crown (female)
Description
The Pectoral Antwren is a small, active antwren found in the understory and mid-story of dry forests. Males exhibit striking black and white plumage, while females have a distinctive rufous crown. They typically forage for insects, often as part of mixed-species flocks.





