Fishing-line as a cause of death of some birds. - I.R. Merzlikin, A.V. Sheverdyukova, V.M. Savostyan. - Berkut. 16 (2). 2007. - P. 183.
Two cases of the death of a Jackdaw and a Grey Heron in Sumy region (NE Ukraine) are described. The birds became entangled in branches by fishing-line winded on legs. [Russian].