European stonechat are short-distance migrants or non-migratory, with part of the population (particularly from northeastern parts of the range, where winters are colder) moving south to winter further south in Europe and more widely in north Africa. The male's song is high and twittering like a dunnock. Both sexes have a clicking call like stones knocking together. In 2015, John Callion published the results of his 25-year study of the bird in "British Birds. European stonechat The European stonechat ("Saxicola rubicola") is a small passerine bird that was formerly classed as a subspecies of the common stonechat. Long considered a member of
Bird strike Bird strike A bird strike—sometimes called birdstrike, bird ingestion (for an engine), bird hit, or bird aircraft strike hazard (BASH)—is a collision between an airborne animal (usually a bird or bat) and a manmade vehicle, especially an aircraft. The term is also used for bird deaths resulting from collisions with structures such as power lines, towers and wind turbines (see Bird–skyscraper collisions and Towerkill). Bird strikes are a significant threat to flight safety, and have caused a number of accidents with human casualties. There are over 13,000 bird strikes annually in the US alone. However, the number of major accidents