Hello Andrzej, Buckfast Bees are a hybrid bee developed by Brother Adam of Buckfast Abbey in England. Work on developing them began during the "Isle of Wight" or "Acarine" disease epidemic, which proved to be Trachael mites. They were initially bred to be resistant to trachael mites, then further work(over sixty years)concentrated on gentleness and productivity. They are a hybrid of many different races of bees. I Hope this helps, Garry Libby Boston, USA [log in to unmask]