Ageing and sexing details:
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SPRING: AHY-U (after-hatch-year, sex unknown) |
Sexes are similar, and differences between SY and ASY birds in spring are not well described.
Photo by Marcel Gahbauer, Las Caletas (CR),
April 2008
Moult limits are not evident on the wing of this individual, but should be looked for on others, as they could be indicative of age.
Photo by Marcel Gahbauer, Las Caletas (CR),
April 2008
The shape of the rectrices may provide a clue regarding age, but this has not been described for Thrushlike Schiffornis.
Photo by Marcel Gahbauer, Las Caletas (CR),
April 2008
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