The white-eyed river martin is a passerine bird, one of only two members of the river martin subfamily of the swallows. They are Aves class. First found in 1968 at Buengboraphet Nakhonsawan. The white-eyed river martin was discovered in 1968 by Thai ornithologist Kitti Thonglongya, who gave the bird its current name.They live in prairie because they like to hold to sleep in thinness grasses. They have short torso,torso is long about 15 centimeter. Since its breeding grounds are undiscovered, nothing is known about the white-eyed river martin's breeding , although it is suggested that it may nest in holes in river sandbars,probably in April or May before the typhoon rain raises water levels. However, clear differences in foot and toe morphology from its African relative have caused some authorities to speculate that even the assumption that it nests in burrows could be incorrect.In winter, it roosts with barn swallows in reed beds.Now they became extinct because people also hunt them for sell as pets and their habitat is destroyed when the prairie they live in are pollution.