A csíz (Spinus spinus) előfordulása Délkelet-Magyarországon

Abstract

The Eurasian Siskin (Spinus spinus (LINNAEUS, 1758)) breeds in coniferous and mixed forests of the Northern Hemisphere. Most of its populations can be considered migratory and it is a typical invasive bird species. It breeds in small number in Hungary, but in most parts of the country can only be found from autumn to spring. The migration of birds passing through Hungary is relatively well known, but these studies are based mainly on the results of ringing activities in the middle of the country. In this study I analyzed the data of Eurasian Siskin in Southeast Hungary, with special regard to their migration, winter and summer occurrences. During my work I mainly used field observation data, during which I observed Siskins on 300 different days out of the 1811 days spent in the area between 2004 and 2019. The spring migration of birds occurred between early March and the end of April, with a peak in early April, which is later than the average migration timing of birds migrating in other parts of Hungary. The timing of the fall migration (end of September – end of November) is about 10 days later than the national average. It is quite rare in winter, while it has also been found in summer. Based on the results these birds are most likely originated from the Apuseni Mountains and not from outside the Carpathian Basin.