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Juvenile with unmarked belly

Posted: Sat Aug 06, 2011 5:42 pm
by little-W
I came across this juvenile LBBG today (Leiden, The Netherlands) with no markings on the belly and a sharp demarcation with the markings on the breast.
Does anyone have similar examples? Could it be a form of leucism? Its brother/sister had regular markings on the belly.

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Re: Juvenile with unmarked belly

Posted: Sat Aug 06, 2011 7:42 pm
by JanJ
Hi.

A similar pattern on this juv Herring - which is not one of my best pic though!

JanJ