AGE – BEST CRITERIA:
Pattern and moult status of GC is generally easy to assess. In 1cy, a moult contrast is present among inner GC. Ad birds show a uniform and freshly moulted plumage.
1cy (male) September. A rather rufous individual showing moult contrast between juv GC1-8 and post-juv GC9-10. Note slightly darker centres, neat pale edges and lack of wedge-shaped pale spot at the tip of the post-juv GC. [1ET81858]
1cy (male) September. Juv TT often mirror the pattern of the juv GC, including the pale wedge-shaped tip. Quite exceptionally, this bird shows a moulted post-juv inner T1, very similar to the post-juv GC9-10 in structure and pattern. [1EV95978]
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