Brown-chested Martin

17.5 cm. Above dark gray-brown. Below grayish white with a gray-brown breast band, the center of breast below the breast band with gray-brown spots. Easily distinguished from Bank Swallow by much larger size and broader triangular wings. "Cher" like calls as in vocalization 1 and 4 seem to be the most common vocalizations, "zweet" calls are heard in vocalization 2, vocalization 3 might be the song. Not as gregarious as other martins, normally flies low over vegetation and water. In rainy conditions forages higher. In Southeast Brazil a solitary breeder nesting in hornero nests and holes in walls of buildings, bridges, earth banks. November-March ^138 . Over open country of the interior, often close to human habitations and water. According to Ihering ^139 moved into Estado S<C4>o Paulo and Rio de Janeiro following colonization of these regions by /Furnarius rufus around 1895. In winter sometimes occurs in large flocks with other swallows: often roosts in towns. Individuals observed in winter could be migrants from the South ^53 . Throughout, to 2000 meters 5715 Calls, T. A. Parker, Jr., LNS44422.: 7097 Calls, T. A. Parker, Jr., LNS35574.: 12244 Calls, T. A. Parker, Jr., LNS35587.: 11819 Calls, R. O. Bierregard, LNS33981. With /Tyrannulus elatus .: 2056 Calls, November 1, 2001, Reserva Rio Doce, MG: 2202 : 8674 :