Case of the mass death of the Swallow. - I.R. Gul, V.V. Lagush, R.Ya. Kunakh. - Berkut. 2. 1993. - P. 55.
In the village of Zherebky (Ternopil region) 95 % Swallow nests in a colony under a bridge were flooded after the pond dam break. [Ukrainian].