The autumn migration 2013
Last Updated on Monday, 07 October 2013 08:12 Written by Administrator Monday, 07 October 2013 08:01
Arlie, the lesser spotted eagle equipped with a satellite transmitter in the summer of 2013, started its autumn migration on September 15th. On that morning, Arlie set off on its journey and managed to cross the Southern Carpathians in 4 hours and, after having gone around Bucharest, it arrived to the north of Bulgaria at 2.00 p.m. On September 15th, Arlie flew 280 km in total. Between September 16th and 17th, it stopped between the Bulgarian towns of Konevo and Vazovo. After having flown across Turkey, Syria, Israel, Egypt and Sudan, on October 5th Arlie arrived in the north-east of South Sudan, near the Ethiopian border.
Another eagle who started its autumn migration is Erika, a three years old bird. In 2012, Erika exceeded all expectations regarding the northern limit of its spring migration and this year it surprized the experts once more. After crossing the south of our country, Erika headed towards the Republic of Moldova and on June 12th it reached Ukraine, north of Kiev. It spent its summer near the town of Komarichi, in eastern Russia. From here, it left south on September 4th. Between September 4th and 16th Erika flew 724 km on winding route, heading south-west. On September 16th, it was still in Ukraine. After a long flight southbound, Erika arrived to the northern shore of the Black Sea which it followed until it reached our country. On October 2nd Erika was in Dobrogea close to Constanta. On October 5th it managed to cross the geographical border between Europe and Asia - the Bosporus Straight - and fly over the city of Istanbul.
During the four years of our project, with the help of the satellite transmitters mounted on 20 birds, we managed to collect important data about the migratory routes and the wintering grounds of the lesser spotted eagles in Africa, but also about how they use the territories and feeding grounds in our country. All this information is essential for the development of the conservation measures dedicated to the lesser spotted eagle - an endangered species whose population is estimated at 20.000 nesting pairs worldwide.