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Migration of barn swallows between Britain and South Africa was first established on 23 December 1912 when a bird that had been ringed by James Masefield at a nest in Staffordshire, was found in Natal. [45]
Welcome swallows are good indicators of temperature, as the temperature drops lower, the less likely a swallow will be observed in the South. When swallows are around, the temperature usually does not drop below -2/-3 degree Celsius. [7] Migration may occur during non-breeding seasons for larger more reliable food sources.
The wire-tailed swallow (Hirundo smithii) is a small passerine bird in the swallow family. It has two subspecies: H. s. smithii, which occurs throughout Africa, and H. s. filifera, which is found in southern and southeastern Asia. It is mainly resident, but populations in Pakistan and northern India migrate further south in winter
An artificial purple martin nesting colony The barn swallow is the national bird of Estonia. [48] They also are one of the most depicted birds on postage stamps around the world. [49] [50] [51] Swallows are tolerated by humans because of their beneficial role as insect eaters, and some species have readily adapted to nesting in and around human ...
The western house martin is similar in habits to other aerial insectivores, including other swallows and martins and the unrelated swifts, and catches insects in flight. [9] In the breeding areas, flies and aphids make up much of the diet, and in Europe, the house martin takes a larger proportion of aphids and small flies than the barn swallow. [9]
Red-throated loon, Gavia stellata — rather common, mostly along the coast and at the mouths of major rivers during spring and fall migration; uncommon in winter and at that time found mostly in eastern Long Island Sound; as many as 100 to 200 individuals gather together in November; many go south by early winter. [2] Pacific loon, Gavia ...
With an average length of 20 cm (7.9 in) and a wingspan of up to 38 cm (15 in), the purple martin is the largest amongst the 90 odd species in the family Hirundinidae.
Barn swallow. The family Hirundinidae is adapted to aerial feeding. They have a slender streamlined body, long pointed wings, and a short bill with a wide gape. The feet are adapted to perching rather than walking, and the front toes are partially joined at the base. Bank swallow, Riparia riparia; Tree swallow, Tachycineta bicolor