These Swallows superb sense of direction take them to a much needed ocean of blue amongst the desert but on closer inspection, not is all at it seems. Taken from Africa. Subscribe to BBC Earth: http://bit.ly/BBCEarthSubBBC Earth YouTube Channel: http://www.youtube.com/BBCEarth BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only) BBC Earth Twitter http://www.twitter.com/bbcearth Visit http://www.bbc.com/earth/world for all the latest animal news and wildlife videos This is a channel from BBC Worldwide, trading as BBC Studios, who help fund new BBC programmes.