Great-crested Grebe (Podiceps cristatus)

Photo: Victoria Jones P/A

Blackwell basin ~ London, England

A Great-crested Grebe (Podiceps cristatus) nurses two of its young on its back in Blackwell Basin, near Canary Wharf, River Thames, London.   The young, as seen above, are distinctive because of their striped, black and white heads - markings which they lose when they mature.
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BarrytheBirder