Pre- and post-construction studies of conflicts between birds and wind turbines in coastal Norway (BirdWind) - Progress Report 2009

From 2007 inclusive, NINA has received economic support for research on wind power and birds from the Norwegian Research Council (NFR) through the RENERGI-programme. The project is named Pre- and post-construction studies of conflicts between birds and wind turbines in coastal Norway (BirdWind). BirdWind is approaching its finalisation; with 2010 as the last ordinary year where data-collecting activities takes place. In 2009 the project was significantly strengthened through a new PhD-position funded by Statkraft and NINA. The position is held for four years, and the overall aim of the work conducted by the PhD-student is to model the future white-tailed eagle (WTE) population development based on reproduction and mortality data. Weekly searches with dogs for birds killed within the wind-power plant have been carried out throughout the year; in general searches are conducted every 7 days (plus or minus one day). 25 ‘primary turbines’ are selected and searched together with one of two dogs. A full search of all turbines is performed at larger intervals. In 2009 (up to December 1) 31 specimens of at least 8 species have been re-corded. The most frequent victims are willow ptarmigan and WTE with 10 and 7 carcasses, re-spectively. Of waders 3 common snipes have been recorded. Five carcasses were recorded of hooded crow, and single carcasses of parrot crossbill, northern wheatear, teal and mallard. Some records from earlier years have been revised as collision victims or not. Also in 2009 censuses for willow ptarmigan have been carried out in spring and autumn on Smøla and Hitra. The preliminary results do not indicate any obvious differences between the two areas, but autumn density in the wind-power plant area seems to be more stable compared to the control area. Interestingly the higher density within the wind-power plant area in autumn is evened out in spring each year, so also in spring 2009. To obtain data on habitat selection, movements, collision risks, survival of eggs, chicks and adults and general population dynamic parameters, willow ptarmigan specimen have been radio-tagged in 2008-2009. The activities regarding breeding waders and small birds (mainly passerines) have this year focused on the EIA-activities on Hitra in connection to the planned extension of the existing power plant on Hitra I; the Hitra II Wind-Power Plant. Since 2003, 50 nestlings of white-tailed eagle have been equipped with satellite transmitters. In 2009, eight WTE nestlings we