He has studied barn swallows, in which the males have tails that are about 20 percent longer than those of the female.
What we are missing here, in this kingdom of airborne bugs, is barn swallows.
That's why he is called the Barn Swallow, and why you never have seen his nest.
These are the typical swallows, including the widespread Barn Swallow.
Where the phoebes will not fly, the barn swallows take over, also pursuing insects.
It has a slow buoyant flight compared to Barn Swallow.
Many of these are migratory, including the Barn Swallow.
Its huge range means that the Barn Swallow is not endangered, although there may be local population declines due to specific threats.
In spring, festival that commemorates barn swallows are coming is held and women cook pancake.
It was a New Ambrosia for barn swallows and bats.