Migration L cachinnans

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Migration L cachinnans

Post by marsmuusse » Sat Nov 07, 2009 9:26 pm

http://www.jncc.gov.uk/PDF/pub07_waterb ... 4.4.14.pdf
PDF: Ringed birds in S Ukraine, 1929 - 2003. Interestingly, during the period metal rings were used, recoveries were made in the close vicinity of the Black Sea. Once darvic rings were used from 1999 onwards, more recoveries came from W Europe.

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