Birds of Humaitá Forest Reserve, Acre, Brazil: an important forest fragment in south-west Amazonia Author Pedroza, Diego Author Melo, Tomaz Nascimento de Author Machado, Tatiana Lemos da Silva Author Guimarães, David Pedroza Author Lima, Jônatas M. Author Guilherme, Edson text Bulletin of the British Ornithologists’ Club 2020 2020-03-19 140 1 58 79 https://bioone.org/journals/bulletin-of-the-british-ornithologists-club/volume-140/issue-1/bboc.v140i1.2020.a7/Birds-of-Humait%c3%a1-Forest-Reserve-Acre-Brazil--an-important/10.25226/bboc.v140i1.2020.a7.full journal article 299618 10.25226/bboc.v140i1.2020.a7 096f10b6-d41b-4ad8-a9dc-c3e96698a7cb 2513-9894 12535635 64699B27-6E74-4A2F-A13C-68777362DF9C RUFOUS TWISTWING Cnipodectes superrufus Endemic; bamboo forest specialist; Vulnerable. In August–September 2014 , TNM observed one in bamboo patches near the reserve headquarters; see Melo et al . (2015) ( Fig. 3B ). On 5 June 2018 , DPG trapped and ringed (CEMAVE F55386) one in a bamboo patch, and on 1 August 2018 , JML trapped and ringed a second individual (CEMAVE F63509) in a part of the forest apparently without any major concentration of Guadua bamboo, whereas the species typically occurs in patches of dense bamboo ( Tobias et al . 2008 ). HFR is the northernmost locality at which C. superrufus has been recorded ( Melo et al . 2015 , Guilherme 2016 ).