Other Names: Northern House Martin
Distribution: Europe and parts of north Africa in summer; sub-Saharan Africa and southeast Asia in winter.
Size: 13 cm in length with a 26-29 cm wingspan, weighing an average of 18.3 grams.
Plumage: The uppersides are uniformly blue-black with a broad white rump. The underside is white, except for the undersides of the wings and tail. The eyes and beak are black.