Juvenile dispersal of saker falcons in Ukraine according satellite telemetry

M. Prommer, Yu. Milobog, M. Gavrilyuk, V. Vetrov

Abstract


Saker Falcon (Falco cherrug) is a partial migrant species. The data of its migration on the territory of Ukraine have been limited so far. In 2011 in the south of Ukraine 8 juvenile Saker Falcons were fitted with satellite transmitters. For this 22g solar ARGOS/GPS PTTs-100 transmitters were used. Two males stopped sending signals within a few days after tagging. After leaving their eyries young birds left nesting territory in 30-64 days (on average - 44). Juvenile dispersal of different birds began in a period between July, 8 to August, 5 (on average – July, 23).  During the first dispersal the birds flew east and northeast from the natal eyrie. These movements were up to several hundred kilometers and lasted from 2 to 10 days, after which the birds returned to the place of temporary settlement located in the Crimea. In one case their placing coincided with the nesting territory, in the other four cases they situated in 20-290 km. In August a juvenile male roamed from the Crimea to Cyprus. Of the three birds that lived up to winter all three spent the winter at the previously selected areas not showing migratory behaviour. In June a one-year-old juvenile male headed northeast to the western Kazakhstan, about 400 km north of the Caspian Sea, and in two months returned to the Crimea. 

Keywords


Saker Falcon; migration; satellite tracking; Ukraine

References


Gavrilyuk M.N., Domashevsky S.V., Vetyrov V.V. Results of winter counts of birds of prey in the central part of the Crimean Peninsula in 2010 // Birds and Environment: Collection of scientific papers / Ed. by Rusev I.T., Stoylovsky V.P., Korzyukov A.I., Kivganov D.A. – Odessa: April, 2013. – P.52-58. In Russian: Гаврилюк М. Н., Домашевский С. В., Ветров В. В. Результаты учетов зимующих хищных птиц в центральной части Крымского полуострова в 2010 г. // Птицы и окружающая среда: Сб. научных работ / Под ред. Русева И.Т., Стойловского В.П., Корзюкова А.И., Кивганова Д.А. – Одесса: Апрель, 2013. – С. 52-58.

Milobog Yu.V., Vetrov V.V., Strigunov V.I., Belik V.P. The Saker (Falco cherrug Gray) in Ukraine and adjacent areas //Branta: Transactions of the Azov-Black Sea Ornitological Station. – 2010. – Issue 13. – P. 135-139. In Russian: Милобог Ю. В., Ветров В. В., Стригунов В. И., Белик В. П. Балобан (Falco cherrug Gray) в Украине и на сопредельных территориях // Бранта: Сб. научн. тр. Азово-Черноморской орнитолог. станции. − 2010. − Вып. 13. − С. 135–159.

Mylobog, Yu.V. Saker Falcon // Red Data Book of Ukraine. Animal World /Edited by I.A.Akimov. - Kyiv, Globalkonsalting, 2009. - P. 436. In Ukrainian: Милобог Ю. В. Балабан // Червона книга України. Тваринний світ / За ред. І. А. Акімова. – К.: Глобалконсалтинг, 2009. – С. 436.

Milobog Yu.V. Falconiformes of the steppe zone of Ukraine: species composition, territorial distribution, abundance dynamics and protection: Theses for the degree of Candidate of Biological Sciences: 03.00.08/ Schmalhausen Institute of Zoology – Kyiv, 2012. – 24 p. In Ukrainian: Милобог Ю.В. Соколоподібні (Falconiformes) степової зони України: видовий склад, територіальний розподіл, динаміка чисельності та охорона: Автореф. дис… канд. біол. наук: 03.00.08 / Інститут зоології ім. І.І. Шмальгаузена. – К., 2012. – 24 c.

Gamauff A., Dosedel R. Satellite telemetry of Saker Falcons (Falco cherrug) in Austria: juvenile dispersal at the westernmost distribution limit of the species // Aquila. 2012.- Vol. 119. - Р. 65–78

Prommer M., Milobog Yu., Gavrilyuk M., Vetrov V., Bagyura J. Relationship between the Central and East European Saker falcon populations based on results of ringing schemes and satellite-tracking // Хищные птицы в динамической среде третьего тысячелетия: Тр. VI Междунар. конф. по соколообразным и совам Северной Евразии, г. Кривой Рог, 27–30 сентября 2012 г. – Кривой Рог: Изд. ФЛ-П Чернявский Д.А., 2012. – С. 434–445.

Prommer M. et al., 2010: Satellite-tracking Sakers (Falco cherrug). – Evaluating Sakers’ post-fledging dispersal, migration, roaming and habitat use from a conservation point of view. Closing conference of the project LIFE06 NAT/HU/000096 «Conservation of Falco cherrug in the Carpathin Basin». – Bükk National Park Directorate, Eger, Hungary. Link: http://sakerlife.mme.hu/uploads/File/Saker_Conference_Abstracts.pdf

Prommer M., Bagyura J., Chavko J., Uhrin M. Migratory movements of Central and Eastern European Saker Falcons (Falco cherrug) from juvenile dispersal to adulthood // Aquila. – 2012. - Vol. 119. - Р. 111–134.


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