Record of the winter roost of Hen-harriers in Ivano-Frankivsk region. - P.V. Bundzyak, V.G. Zavadovsky, S.I. Brus. - Berkut. 3 (1). 1994. - P. 48.
The harriers were found near the village of Rashkiv in Gorodenka district. Number fluctuated from 8 till 15 birds. [Ukrainian].