Wednesday, 14 November 2007
Nature Fact
Many species of birds set off on migration at night. These nocturnal flyers include wildfowl, waders and songbirds. They are night flyers for several reasons. First, the air is cooler at night which is especially important as the bird arrives in the warmer southern areas. Cool air allows a bird to fly faster with less dehydration and loss of energy. Secondly, there are fewer predators as these are usually daytime migrants. By choosing to migrate at night, the bird can stop to feed and rest during daylight hours