Wire-Tailed Swallow

It is not often that I am with a good guide and catch a bird that the guide did not see, or at least did not identify to me. I got home and was reviewing my photos from Keoladeo NP in India and got one photo of a very distinctive bird taking flight from a bare branch. iNaturalist easily identified it as a wire-tailed swallow and this bird is phenomenal. First, my photo. 

Now look at this photo from Wikipedia. Just gorgeous. 

No question it is the same bird. What a beauty. Next are illustrations from Birds of the World. 

Male flying

Female

Male, ssp. filifera, from Birds of the World. 

There are two subspecies. I saw filifera, also known as the Asian wire-tailed swallow. It is found in southern and southeastern Asia. The nominate ssp., smithii, is also known as the African wire-tailed swallow and is found throughout Africa. They are associated with water, typically seen flying low over it. They feed on insects, especially flies, while flying.  It has bright blue upperparts, bright white underparts and a chestnut cap. It is named for its very long filamentous outermost tail feathers, which trail behind like two wires. The male has longer "wires" than the female. 

Range from Birds of the World.