The numbers and density of Syrian Woodpeckers were estimated in a synanthropic environment in an area of 238 km2 in SE Poland during 2003–2005. The combined cartographic method together with voice stimulation (playback) was used during the study. The birds' reaction to the playback was also assessed. It was found that the woodpeckers reacted most strongly to voice stimulation in March and April, which led to a high rate of discovering breeding sites during this period. During the breeding period (May-June) the birds reacted less strongly to playback, which significantly decreased our ability to find their territories. The woodpeckers most often reacted to vocal provocation by drumming and emitting alarm calls, which permitted rapid confirmation of the birds' presence in their territories. During the three years of the study, respectively 29, 41 and 35 Syrian Woodpecker breeding pairs were confirmed, giving a mean density of 1.2–1.7 pairs/10 km2 for the entire study area, and 13.8–19.5 pairs/10 km2 calculated for the area of optimal habitat, such as orchards, tree lines and the scattered tree growth associated with human settlements (21 km2). The densities noted are among the highest found in both Poland and Europe.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 41 • No. 1