High Quality Content by WIKIPEDIA articles! The African River Martin (Pseudochelidon eurystomina) is a passerine bird, one of two members of the river martin subfamily of the swallow family Hirundinidae. It is a medium-sized, mainly black-plumaged species with red eyes, a broad orange-red bill and a square tail. Its structural differences from most other swallows, including its robust legs and feet and stout bill, indicate that it should be placed with the Asian White-eyed River Martin in a separate subfamily.