The Barn Swallow is a beautiful migratory bird of small size, blue in color with a beige belly and a red head. It is also called Hirundo Rustica and is considered the most agile and fastest among all the swallows. These adorable birds spend 95% of their time in flight and the swallow even feeds its chicks in the air! By the way, barn swallows feed on butterflies, mosquitoes, flies, and beetles. The animal cursor for a mouse with Barn Swallow!