The Siskin nesting in Kharkiv region. - L.P. Babkin. - Berkut. 3 (1). 1994. - P. 58.
In May 1991 the nest built by 2 pairs was observed in Dergachiv district. At the end of June 2 broods in 4 young birds were recorded. In July 1992 2 pairs of adult Siskins with fledglings were met. [Ukrainian].