Friday, 25 April 2014

Swallow


Small perching bird found almost everywhere in the world. There are about 100 species including the martins . They are graceful flyers and can make abrupt changes at top speed in different directions swallows have long narrow wings, forked tails , and weak feet . They feed on the wing catching insects with their mouth wide-open. Nesting in flocks they prefer secluded places Barnes, chimneys, sheds, there plumage is blue or black with a metallic sheen, darker and rougher above than on the underside. In North America, the common American barn swallow is still blue above and pinkish beneath, with a rusty for head and deeply forked tail. The purple martin has a deep violet with black wings and tail. Other American swallows with forked tails are the cliff or eave swallow, which builds the jugshaped nest of mud and clay and feathers; the bank swallow or sand marten, which burrows into shore banks to nest and the trees like the rough winged swallows. The so-called chimney swallow is a swift.
» Small slender songbird.
» White underneath and shiny blue-green on top.
» Small bill.
» Long wings. Wing span: 30-35 cm (12-14 in)
» Size: 12-15 cm (5-6 in)
» Weight: 16-25 g (0.56-0.88 ounces)
» Adults similar in appearance; yearling female and juveniles brown.

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