To biology of the Night Heron in Kirovograd region. - A.O. Shevtsov. - Berkut.
11 (1). 2002. - P. 27-30.
Research was carried out in a mixed colony of herons on fish ponds near the village of Yalynivka (Olexandriya district; 48.40 N, 32.33 E) in 19971999. Some peculiarities of breeding of night herons were studied. These birds arrive since end of March till end of April. Nests are built in trees and shrubs of willow and in reed. Full clutch has on average 3,7 eggs (n = 35). Eggs are laid since middle of April till beginning of June, peak of egg laying is in the middle of May. Broods have 14 nestlings (on average 3,1). Breeding success makes 77,2 %. Autumn migration pass since beginning of August till end of October. [Ukrainian].
Key words: Night Heron, Nycticorax nycticorax, Kirovograd region, ecology, breeding.
Address: A.O Shevtsov, Heroyiv Stalingradu str. 19/26, 28008 Olexandriya, Kirovograd region, Ukraine.