First winter female, features visible include lack of yellow 'right-angled' primary tips (see adult below), only 3 red waxy tips, defuse black throat and bib edges and rather short yellow tail band.
First winter male, extensive yellow tail band, large number of red waxy tips and well demarcated black bib.
Adult male, features visible here include 'right -angle' yellow primary edges, 9 red waxy tips and broad yellow tail band.
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