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Thanks for answering. In birds I recognize the male because it has a more colorful plumage than the female and the darker color at the peak (as you say). I can also know which is the female because she is bigger. But as there is only one bird in the picture, I can't tell. Regards

No problem, I love helping people identify birds, it gives me great joy, if you ever struggle to identify a bird, just send me a picture and I will do my best to help you!