... two juveniles ... two second-winters ... and some adults in flight ...
... this group, mainly adults show quite variable head patterns ... one has a yellow colour-ring ...
... these three are at different stages of moult, going from juvenile into first-winter plumage ...
... interestingly, colour-ringed birds occurring previously have come from a diverse range of countries ... Hungary, Poland, Germany Belgium ... do they arrive here independently or do they congregate somewhere on the continent first ?
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