Maps show ringing recoveries of birds ringed at Operation Baltic as well as birds ringed elsewhere and recovered at Operation Baltic, in 1960–2015. Numbers in square brackets show the number of recoveries of birds controlled or ringed at each Operation Baltic station. Birds ringed at satellite stations were merged with those ringed at the closest Operation Baltic main stations. Squares indicate recoveries in the breeding season (20 May – 15 July).
Source:
Maciąg T. 2017. Wieloletnie trendy liczebności wybranych gatunków wróblowych w trakcie wiosennej i jesiennej migracji przez polskie wybrzeże Bałtyku. Praca magisterska, Stacja Badania Wędrówek Ptaków, Wydział Biologii Uniwersytetu Gdańskiego [Long-term trends of numbers of some passerine species during spring and autumn migration through the Polish Baltic coast. MSc thesis, Bird Migration Research Station, Faculty of Biology, University of Gdańsk; in Polish]. PDF
Recommended citation:
Maciąg T., Remisiewicz M., Nowakowski J.K., Redlisiak M., Rosińska K., Stępniewski K., Stępniewska K., Szulc J. Website of the Bird Migration Research Station [online]. Gdańsk: University of Gdańsk, 2017 [updated 2017-..- ..], [accessed on …. – write the date of access]. http://www.sbwp.ug.edu.pl/badania/monitoringwyniki/