Unicolored Antwren

9 cm. Male is slate-gray with a darker throat patch. Wings gray without wing bars. <NFemale is rufous-brown above and more buff underneath. Following ^58 | 1 A descending "whee", the song is an evenly paced series of two to ten of these lengthened, descending syllables . A sequence of notes, possibly a song, can be heard on track 1 at the end.<N 2 A "djeer djeer" which can be heard at the beginning of track 1.<N 3 A series of raspy syllables the first of which is different from the rest, maybe a scold or mobbing vocalization.<N 4 The most common contact vocalization is a "kleek" or "wheet" as heard on track 2 and track 3. In pairs, family groups or in mixed flocks within 4-11 meters from the ground in tall forest ^58 . I have also observed groups of this species at Jureia at 2-3 meters above the ground. Moves through vegetation in short flights collecting prey with gleans and reaches. Selects preferentially dead leaf substrates ^58 . A relatively common endemic antwren of the Atlantic Forest. In the interior of tall primary and old secondary rain forest and restinga. This species seems to be more adaptable to secondary forest and brush than Myrmotherula minor. Throughout the area, always close to the coast from<8E>Rio de Janeiro<8E>to<8E>Ilha do Cardoso<8E>. Not inland. Mostly below 200 meters. 4295 Calls. Picinguaba, east of Ubatuba, 11<10>21<10>98. Cloudy, light rain, 20<91>C. Secondary forest.: 6856 Calls, "jee see see see". Jureia-Peruibe, 10<10>12<10>99. Cloudy, 22<91>C. Primary forest. With /Attila rufus, Herpsilochmus rufimarginatus, Myiodynastes maculatus, Mionectes rufiventris .: 13864 Calls. Cornell Cat 19293. Osorio, Fazenda do Pontal, Rio Grande do Sul, 1<10>22<10>76. With /Leptotila verreauxi . Recording by W. Belton.: 13317 >: