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Old Monday 24th September 2018, 12:30   #3
Rotherbirder
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Join Date: Aug 2013
Location: South Yorkshire, UK
Posts: 836
Well researched; I think you're pretty well right with your age assessments there. As for the differences between juvenile & immature, there are threads on this forum where it is discussed at length, so you may care to search.

RB
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