Not German Blacks . I used to keep Blacks a few years still have some of their genetics in my stock. German Blacks are black with thin brown bands. What you are seeing are either a Russian x Carniolan or a Caucasian x Carniolan. Sorry for the stutter.
The bees in the waterer are "Italians". The black bees are a color phase caused by mixed breeding. Black bees in Italian colonies can also be caused by an infection of Chronic Bee Parlaysis Virus, which in one form causes the bees to lose their hair, making them appear shiny black or greasy.
A forum community dedicated to beekeeping, bee owners and enthusiasts. Come join the discussion about breeding, honey production, health, behavior, hives, housing, adopting, care, classifieds, and more!