Page 1 of 1

Migration L cachinnans

Posted: Sat Nov 07, 2009 9:26 pm
by marsmuusse ... 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.