Abstract

In the course of 1991-2000, the author carried out a population survey of white stork in South Somogy county (1200 km2). 46 villages and 22 farms were regularly checked by years. During the examination the number of breeding pairs (Hpa) were about 99-102 and 143-148, so the density (StD) were 8.25-12.33 pairs/100 km2. There were the lowest the portion of successful breeding (HPm) (49.6%) in 1997, while the highest (83.3%) was in 1994. In 1996, 1994 and 2000, the total numbers of juveniles (JZG) were the highest. Between 1991-2000, the survey pointed out that 34.6% increasing in the percentage of nests.

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