Woodpecker foraging activity in oak-dominated hill forests in Hungary

Komlós, Mariann and Botta-Dukát, Zoltán and Winkler, Dániel and Aszalós, Réka and Ónodi, Gábor (2021) Woodpecker foraging activity in oak-dominated hill forests in Hungary. ORNIS HUNGARICA, 29 (1). pp. 82-97. ISSN 1215-1610

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Abstract

We documented the foraging activities of woodpeckers on selected trees in an established conservation-oriented management study in five oak-dominated forests in Hungary. We examined the tree species preference of woodpeckers as a group and the impact of specific tree characteristics on the habitat use of woodpeckers. We estimated the percentage of visible foraging signs on the trunks and upper limbs of selected trees through the winter and early spring of 2019–2020. Based on the Jacobs’ index, woodpeckers preferred oak species for foraging and most foraging signs were on limbs rather than trunks. Foraging signs on trunks were more frequent on those of larger diameters and greater heights. It was also found that the lower the tree, the greater the effect of its diameter on the occurrence of signs.

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