Aves, p�le ornithologique de Natagora

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Aves, 45/3 | 2008 | 129-147

  Age and Sex of the Kestrel (Falco tinnunculus) in Winter
Burnel, A., Fraipont, R. & Vandewer, A.

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Article summary

We discuss various criteria to determine the age and sex of Kestrels (Falco tinnunculus) when in the hand. An adult male can immediately be recognised. A young male generally is no problem as long as at least one feather on the mantle has moulted. For females, age is often difficult to determine. A first year bird generally has mantle, back, and wing coverts of two generations; often as well, a clear border is visible at the tip of the primary coverts.

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