Termites in south Kansas were swarming by early March. Given this year's impatient spring, their wood-eating kin in northern counties should be flying by early April. In a favorable year, literally billions of Kansas termites go house-hunting then.
Most people miss the flight.
The swarmers emerge and disperse in minutes. For example, if termites swarm indoors, broken wing parts often show up near windows and doors. So, if you find fragile, grayish-colored wings while cleaning a window sill, you should save samples and get them identified. Termites swarm only when their home colony has become overcrowded. They don't have the energy to fly far without the wind's help.