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House Martin Scientific name: Delichon urbicaLength: 13-14 cm
Status: Breeding summer visitor Wingspan: 26-29 cm
Breeding pairs: 510,000 pairsWeight: 16-24 g
Wintering birds:
Conservation status: Amber

Description: Male house martins have a glossy blue crown and back with a white rump and long, black wings and forked tail. The underparts are white. They have a short black bill, dark brown eyes, white, feathered legs and pink feet.

Female house martins look similar to males except the underparts are greyer

Juvenile house martins have less blue and are duller and browner with a shorter tail.

Nesting: House martins breed in colonies of hundreds of pairs on cliffs, under bridges. They will also use manmade structures such as under the eaves of houses when they tend to breed in smaller colonies.

The nest is made from mud which the house martins collect from nearby streams and ponds. The add the mud in layers to form a cup shaped nest with a narrow entrance at the top and line it with grasses and other soft materials.

House martins lay 1-7 eggs, which are incubated by both sexes for 14-16 days. The chicks are fed by both parents and fledge 22-32 days after hatching. They return to the nest for roosting for several days after during which the adults continue to feed them.

Feeding: House martins feed almost exclusively on insects which they catch on the wing. They are also able to hunt on the ground for insects.

Where to see them: House martins can be seen between April and October across the whole of the UK except in far north and west Scotland.

They are found in towns and villages, areas of mixed agriculture and near water and woodland.


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Credit: Dimitri

Did you know? Although thousands of house martins are ringed in the UK each year where they go each winter is a complete mystery because few have been observed in Africa.


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