When I first saw Jackdaws I thought they were juvenile Hooded Crows. With further research, I found that they were a separate species of Corvus, making them the fifth member of the crow family that I have identified in Belgrade. It is one of the smallest members of the crows and ravens. They are native to Europe and much of Asia.
They are not as common as the Hooded Crow. I did not see them much this winter, so I assume they may migrate. They like to be in groups, sometimes huge colonies. I have seen them in flocks of 4-8, mostly foraging on the grounds of our school or the African Museum. The photo above was taken on my morning run yesterday along the bike path on the Sava River. I was opposite the Sajam Fairgrounds.