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The house martins are closely related to other swallows that build mud nests, particularly the Hirundo barn swallows. They breed only in Europe, Asia and the mountains of North Africa . Three species, the common , Siberian and Asian house martins , migrate south in winter, while the Nepal house martin is resident in the Himalayas year-round.
The Nepal house martin feeds on insects taken in flight, hunting along ridges or above treetops. The diet is not well known, but includes flies. [6] This bird is gregarious, feeding in flocks often with other aerial predators like the Himalayan swiftlet, [6] or other hirundines such as the barn swallow, striated swallow or common house martin. [16]
The bird genus Hirundo is a group of passerines in the family Hirundinidae (swallows and martins). The genus name is Latin for a swallow. [1] These are the typical swallows, including the widespread barn swallow. Many of this group have blue backs, red on the face and sometimes the rump or nape, and whitish or rufous underparts. With fifteen ...
The Cecropsis species construct a closed mud nest and therefore belong to the latter group. It is believed that the evolutionary sequence is from species that make open cup nests (Hirundo and Ptyonoprogne), through Delichon house martins with closed nests, to Cecropis and Petrochelidon, which have retort-like closed nests with an entrance ...
The cliff swallow or American cliff swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae, the swallows and martins. [2] The generic name Petrochelidon is derived from the Ancient Greek petros meaning "stone" and khelidon (χελιδών) "swallow", and the specific name pyrrhonota comes from purrhos meaning "flame-coloured" and -notos "-backed".
The sand martin (Riparia riparia), also known as collared sand martin or common sand martin, and in the Americas as the bank swallow, is a migratory passerine bird in the swallow family Hirundinidae. It has a wide range in summer, embracing practically the whole Holarctic area, from Europe, across Asia to the Pacific Ocean, and throughout North ...
Tree martins also occasionally reline the nests of welcome swallows, and may displace the owners to obtain the nest. The nest, unusually for a cliff swallow, is often made just from grass and leaves, but may be reinforced with mud. A mud and plant fibre cement is also used to reduce the width of the entrance to the breeding hole.