4cy+ October. Recently moulted PP8-9 as well as (a new wave) PP1-3. This state of moult is typical for 4cy, and the retained innermost P10 seem juvenile (much worn and rather narrow), giving further confidens to the age being 4cy (rather than 4cy+). But in older age classes, similar patterns will reappear with an interval of a few years, and if the innermost P10 is not juvenile (but instead a retained worn feather from an adult generation) the wing would be very difficult to separate from the one shown here. For this reason, we find it advisable not to go further than 4cy+ in birds looing like this. [7133087]