Swallow
Hirundo rustica
Length 19cm

A common summer visitor to most of Britain and Ireland including the northern isles. The arrival of the first birds in early April heralds the start of spring. Most birds depart for their African wintering grounds in August and September but small numbers often linger late into autumn, usually being found near coastal lakes and reservoirs. Recognised in flight by pointed wings and tail with long streamers; shorter in juvenile and female than male. Has blue-black upperparts and white underparts except for brick-red throat and forecrown. Frequently utters its vit call in flight and, when perched on overhead wires, male sings a twittering song. Nests under eaves and in barns and sheds, building half cup-shaped nest of mud attached to wall or rafter. Prior to migration in autumn, gathers in sizeable flocks which feed over marshes and lakes and roost in reedbeds in hundreds or thousands. At this time, also seen perched side-by-side on roadside wires along with house martins.