Regional Differences. There are two subspecies of Swallow-tailed Kite, but they look very similar and only one of them occurs in the U.S. (it is slightly larger and more purplish-black); the other subspecies is native to Central and South America.

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The sell-by dates you shouldn’t swallow because they’re a myth peddled by supermarkets to make us buy more. Now, as East of England Co-op sells food after its ‘Best Before’ date, your guide to how long food REALLY lasts

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Has a Barn Swallow started slapping mud on a wall of your house in preparation for making a nest? Are you dreading the clean-up duties that will follow? If so, the chattering of this swallow probably is not music to your ears. [Repeat chattering] Over the years, Barn Swallows have adapted to nesting

By Jonathan Corum. Nov. 17, 2003. After spending some time last month trying to develop alternate graphic presentations for kinematic ratios in winged flight, I decided to try to answer one of the timeless questions of science: just what is the airspeed velocity of an unladen swallow?

competition among cavity nesters for sites, qualities of good nest boxes and birdhouses, birdhouse designs

The swallows and martins, or Hirundinidae, are a family of passerine birds found around the world on all continents except Antarctica. Highly adapted to aerial feeding, they have a distinctive appearance.

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