This Swallow design doesn't have a hole for fixing as it is designed to have a hidden fixing to a wall or fence using a strong magnet (supplied). There is a discount for a set of three. They can be rotated and positioned to simulate their amazing flight. The swallows, martins, and saw-wings, or Hirundinidae, are a family of passerine birds found around the world on all continents, including occasionally in Antarctica. Highly adapted to aerial feeding, they have a distinctive appearance. The term "swallow" is used colloquially in Europe as a synonym for the barn swallow. Because of the long human experience with these conspicuous species, many myths and legends have arisen as a consequence, particularly relating to the barn swallow.