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Fairy Martin (Petrochelidon ariel) - wiki
Subject: Fairy Martin (Petrochelidon ariel) - wiki
FairyMartin (Mattern)-Fairy Martin (Petrochelidon ariel).jpg
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Fairy Martin (Petrochelidon ariel) - wiki

Fairy Martin
From Wikipedia, the free encyclopedia

[Photo] Fairy Martin (Petrochelidon ariel). Author: Thomas Mattern, Department of Zoology, University of Otago, Dunedin, New Zealand. Date: 10.11.2004. Location: Snares Islands, North East Island, Station Cove. Note: Uncommon straggler observed on sub-Antarctic Snares Islands. This was the fourth reported sighting of a Fairy Martin in New Zealand.

The Fairy Martin (Petrochelidon ariel) is a member of the swallow family of passerine birds which breeds in Australia. It is migratory wintering through most of Australia, with some birds reaching New Guinea and Indonesia. It is increasing a wanderer to New Zealand, and may have bred. This species is frequently placed in the genus Hirundo as Hirundo ariel. It has no subspecies.

This is a bird of open country near water, and is usually seen near its nest sites in cliffs, culverts or bridges.

The Fairy Martin is dumpy and square tailed. It averages 12 cm long and weighs 11 g. The adult has an iridescent blue back, brown wings and tail, a rufous crown and nape, and a whitish rump. The underparts are dull white. The sexes are similar, but young birds are duller and browner, with a paler forehead and pale fringes to the back and wing feathers.

This species can be distinguished from other Australian swallows by its pale rump. The most similar species, the Tree Martin, has a shallowly forked tail and blue-black head and nape.

The call of this vocal swallow is a chrrrr and the song is a high-pitched twitter. The vocalizations are higher pitched than those of the Tree Martin.

Fairy Martins breed from August through to January in colonies usually of a few tens of nests, but the largest known site had 700 nests. Nests are constructed in natural holes in dead trees, riverbanks, cliff faces or rock crevices, but increasingly in artificial sites on bridges, in culverts and pipes, and on buildings.

The nest is a retort or bottle shaped structure, made from up to 1000 mud pellets and lined with dried grasses and feathers. The bowl is about 15 cm in diameter, and the entrance tunnel is 5-30 cm long. The nests in a colony are clustered together. Both sexes build the nest and share incubation and care of the young.

The clutch is usually four, sometimes five, reddish-brown speckled white eggs, and this species is often double or triple brooded.

The Fairy Martin feeds high in the air on flying insects, usually in. Fairy Martins have a slow fluttering flight and feed higher than Welcome Swallows. They will also feed on insect swarms low over water, and have been recorded feeding on injured moths on a newly-cut lawn. This species is highly gregarious and forms large flocks, often with Tree Martins.
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Hirundo ariel
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