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
Common black hawk distinctive piping "spink-speenk-speenk-spink-spink-spink". The common black hawk is protected in the far north of its range (in the USA) under the Migratory Bird Treaty Act of 1918. Common black hawk The common black hawk ("Buteogallus anthracinus") is a bird of prey in the family Accipitridae, which also includes the eagles, hawks, and Old World vultures. It formerly included the Cuban black-hawk ("Buteogallus gundlachii") as a subspecies. The mangrove black hawk, traditionally considered a distinct species, is now generally considered a subspecies, "B. a. subtilis", of the common black-hawk. The adult common black-hawk is long and weighs on average. It has