PhosphorusDecree wrote:
A whole flock of black-headed gulls. Wierdly, they were still in winter plumage- the black reduced to a couple of spots on the sides of their heads. A few were just starting to turn. I wonder if they've been somewhere with freak cold weather the last few months?
They should be moulting out of their breeding (summer) plumage into their winter plumage now. The black (brown really) heads are only carried during the breeding season which is largely over. In the UK most start their moult from late May to late July so many will be back in full winter plumage already.
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