To the Coal Tit distribution in the West of Ukraine. - V.O. Novak. - Berkut. 3 (2). 1994. P. 147.
Several nesting places were found in Letychiv and Khelnitsky districts of Khmelnitsky region out of the known breeding range in 1993. It is supposed that the Coal Tit is unnumerous breeding species in this area. [Ukrainian].