Scientific Journal of the BirdLife Hungary

A Magyar Madártani és Természetvédelmi Egyesület tudományos folyóirata

Ornis Hungarica. vol.29(2). (2021) p.139-150.

Characteristics of nest cavities used by White-backed Woodpecker (Dendrocopos leucotos) in Hungary
Gerard Gorman

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The objective of this study was to document characteristics of cavities used for breeding by White-backed Woodpeckers Dendrocopos leucotos in Hungary. Twenty-five nest cavities were examined over a period of ten years (2011–2020). Five different tree species were used. The cavities were excavated at a mean height of 4.6 m and 2.2 m standard deviation and ranged from 2 to 8 m. All cavities found were in the main trunks of trees with trunk diameters ranging between 35–55 cm with a mean of 41.6 cm and 5.6 cm standard deviation. A southerly orientation of cavity entrances prevailed with a mean direction of 189±74 clockwise from north (median 180° IQR = 113°). The results suggest that cavity entrance orientation was non-random.