The Boreal Owl (aka Tengnmalm’s Owl) has raised a brood in the Netherlands for the first time in 30 years, according to the Dutch Forestry Department (Staatsbosbeheer). The Boreal Owl is about the same size as the Little Owl, which is common in the Netherlands.
In 1971 a dead Boreal Owl was found in the Netherlands, and in 1974 and 1977 unsuccessful Boreal Owl nests were seen in the country. Since the mid-1980’s male Boreal Owls have been heard calling, although none had been seen. After a group of interested birders reported hearing males and possibly females calling, the Dutch Forestry Dept. blocked off an area of forest. In April a nest was discovered although both chicks were killed by birds of prey. A second nest was found in June, where apparently at least two chicks survived to fledge.