River Warbler

13.5 cm. Crown gray-brown. Black lateral crown stripe. Upper parts dark olive green. Underparts and supercilium buffy-white. Eyestripe black. Legs pink. Call a short "sib" ^119 , song starts with two short soft notes continuing with a loud ascending crescendo of over twenty notes listen to vocalization 1 . Hops in pairs on ground or on fallen logs close to water or at the waters edge. Swings tail from side to side and up and down when walking. Breeds in Brazil in March, April, July ^154 . Local, but not uncommon. Inhabits humid rainforest, restinga forest, swamp forest, always close to rivers, streams, brooks, iguarapes. In many locations close to the coast. In Estado S<C4>o Paulo found at<8E>Bertioga, Igarau, Pariquera Acu, Barra do Ribeira, Iguape, PE Jacupiranga, Cananeia, Ubatuba, Juquia, Itarar<CA>, and further inland at<8E>Botucatu, Bauru, Valpariso ^40 . In Estado Rio de Janeiro found at<8E>Nova Friburgo, Cantagalo, Registro do Sai ^40 . To 1000 meters 4891 Iguape, 10<10>22<10>93, cloudy, 26<91>C. Swamp forest. With /Chiroxiphia caudata .: 1372 Song, Cananeia, S<C4>o Paulo, December 1, 2002. 25<91>C, cloudy.: 3678 Song, Volta Velha State Park, Parana, November 26, 2002, 30<91>C, sunny. Swamp forest.: 5913 Song, Volta Velha State Park, Parana, November 26, 2002, swampforest, 30<91>C, sunny.: 7666 >: 12015 :