2cy May. Tails may be rather difficult to assess (esp. separation of early pre-breeding and post-breeding/post-juvenile generations, which all can be rather variable in wear). However, separating the mentioned generations is not necessary - it is only the presence of juvenile feathers that help the ageing process (proves the bird as 2cy). In this bird, right R2-3 are juvenile, while the rest are likely pre-breeding. [1ES24663]