If a large number of termites land near or inside your property,you should probably take it as a future warning.
Termites generally live underground and survive by feeding on wood, grass and decayed organisms. They are a kind of pest and there are 250 species of this insect in Australia. But there are only a few of them that can cause damage to your home.
Flying termites emerge from their underground colonies after three years when they are ready to reproduce and expand their family. This process is called social swarming and its purpose is to find new locations for a new colony.
Winged termites flying together in a group is called swarm and consists of reproductive termites of the colony. A termite generally has a short life span of a day or two and can fly for a few minutes. Though they have two pairs of same sized wings that help them fly, they soon loose them and fall to the ground.