Hornets are the largest of the u.k wasps and like other social wasps, hornets build communal nests by chewing wood to make a papery pulp.
Each nest has one queen, who lays eggs and is attended by workers. Most species make exposed nests in trees and shrubs, but some build their nests underground or in other cavities.
The nest dies over the winter, with lone queens hibernating in leaf litter or lofts until the spring.
Hornets are often considered pests, as they aggressively guard their nesting sites when threatened. This is particularly true for hornets nesting close to human habitation, such as lawns where children play and pets run free as their stings are more dangerous than those of wasps and bees.