Birds of Humaitá Forest Reserve, Acre, Brazil: an important forest fragment in south-west Amazonia

Abstract

Humaita Forest Reserve (HFR) is a forest fragment in the state of Acre, Brazil. Between 2009 and 2019, this fragment has been inventoried by multiple ornithologists and birdwatchers. To provide a comprehensive list of the avifauna of HFR, we compiled all of the available data, including published reports and recent, unpublished surveys. The list includes 356 bird species belonging to 60 families and 23 orders. This species richness is the greatest recorded in those forest fragments that have been inventoried in eastern Acre. We found that HFR is an important site for the conservation of many threatened species, and migrants, as well as poorly known species with a restricted geographic distribution, such as Semi-collared Puffbird Malacoptila semicincta, Goeldi's Antbird Akletos goeldii, Rufous Twistwing Cnipodectes superrufus and Acre Tody-Tyrant Hemitriccus cohnhafti.