Ornis Hungarica. vol.8-9. (1999) p.27-32.
Breeding ecology of the Great Crested Grebe Podiceps cristatus in northeastern Slovenia
The paper presents the results of breeding ecology of the Great Crested Grebe (Podiceps cristatus) on Dravsko polje in northeastern Slovenia. Up to 44 pairs breed on Dravsko polje, mainly in the Raki ribniki-Poeg Landscape Park. This represents about 15% of the entire breeding population in Slovenia. The highest breeding density was 7 pairs/10 ha. There were significant differences in breeding densities between localities. Correlation between the lower nest diameter and the nest-height was significant, whereas correlation between the upper nestdiameter and nest-height was not significant. The relationship between breeding pairs of the Little Grebe Tachybaptus ruficollis and the Great Crested Grebe was positive but not significant.