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1w cach with dark underwing

Posted: Tue Dec 30, 2014 7:50 am
by Luka Jurinovic
Hi everyone!

Is this too dark underwing for cach? Are there some arg genes in it?
I took this last Saturday on jakuševec, Zagreb? It was ringed in May 2014 in cach colony of ZB.KOZIELNO,PACZKÓW..

I aslo found two Slovakian cach and they also look preety dark to me. Photos on my blog


Re: 1w cach with dark underwing

Posted: Fri May 29, 2015 8:45 pm
by marsmuusse
Hi Luka,
I think this would still be okay within the limits of cachinnans. After all, Kozielno is an almost homogeneous population: