Gray-bellied Spinetail

5.5 Uniformly olive-brown above with rufous wing coverts and primaries. A white chin spot and a black throat patch. Below slaty gray, the lower flanks olivaceous. Tail chestnut-brown. <NImmature is similar to the adult, but paler and with a less distinct throat patch. The chest and belly of the immature bird are grayish white with light brown flammulated streaking. The flanks are light brown as in the adult and the center of the abdomen is buffy white ^50 . Song "sii du dit" several times repeated, the second syllable with a somewhat lower pitch. Can also be heard on ^11. Inside undergrowth of dense humid forest, difficult to see. Uncommon in the understory of humid highland forest, not associated with forest borders and frequently far away from the forest edge. Throughout, mostly in the coastal ranges, but also at<8E>Itatiaia<8E>and the<8E>Serra dos Org<C4>os<8E>. To about 1200 meters on<8E>Itatiaia<8E>. 442 Song. Fazenda Intervales, 11<10>30<10>97. Sunny, 27<91>C. Primary forest understory with bamboo. With /Procnias nudicollis, Attila phoenicurus .: 2983 Song. Cornell Cat 23712. Misiones, Argentina, Iguazu National Park, 11<10>04<10>80. With /Basileuterus leucoblepharus, Vireo olivaceus . Recording by T. A. Parker, Jr.: 9656 >: