The Rio Suno antwren is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Colombia, Ecuador and Peru.
Region
Western Amazon Basin
Typical Environment
Occurs in humid lowland and foothill rainforests of Brazil (western Amazonia), Colombia (southeastern), Ecuador, and Peru. It favors terra firme forest with dense understory, vine tangles, and dead-leaf clusters, and also uses edges of seasonally flooded forest and secondary growth where cover remains thick. Most activity is within the lower to mid understory, typically a few meters above ground. Frequently accompanies mixed-species flocks and may approach army-ant swarms opportunistically, though it primarily gleans rather than pursues flushed prey.
Altitude Range
200–1000 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
The Rio Suno antwren is a small understory antbird that often forages in mixed-species flocks, especially in the humid lowland and foothill forests of the western Amazon. It specializes in picking tiny arthropods from dead-leaf clusters and vine tangles, a niche shared by several members of its genus. Pairs remain closely associated year-round and give soft contact calls while moving through dense foliage.
Temperament
social and active
Flight Pattern
short rapid wingbeats
Social Behavior
Usually found in pairs that join mixed-species understory flocks, moving methodically through dense foliage. Territorial year-round with soft contact calls keeping pairs in touch. Nests are typically small, cup-like structures placed low in shrubs or vine tangles.
Migratory Pattern
Resident
Song Description
A high, thin series of notes that accelerates into a short trill; calls are soft chips and seeps given frequently while foraging. Duets between pair members can occur, with overlapping, sibilant phrases.
