The aim of the study was to test whether the methods using the playback technique produce accurate data of population size when compared to the standard mapping and nest-searching methods. The three-visit method with audio-stimulation was found to produce data of the same accuracy (100%, n = 11 territories) as the standard mapping method, but the nest-searching method and single-visit with audio-stimulation yielded slightly lower estimates, 91% and 82% respectively, in comparison to the previously mentioned methods. However, the three-visit method with audio-stimulation was 2.2 times less time consuming than the five visits which used the standard mapping method (9h vs 20h). The three-visit method with audio stimulation could be appropriate for assessing distribution and abundance, and also for monitoring purposes.
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1 July 2004
Accuracy and Efficiency of Different Techniques for Censusing Territorial Middle Spotted Woodpeckers Dendrocopos medius
Ziemowit Kosiński,
Marcin Kempa,
Robert Hybsz
Acta Ornithologica
Vol. 39 • No. 1
July 2004
Vol. 39 • No. 1
July 2004
Dendrocopos medius
inter-methods differences
Middle Spotted Woodpecker
nest-searching
playback technique
territory mapping method