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Photo: Dominic Robinson / Alamy Stock Photos

GREAT CRESTED GREBE

(Podiceps cristatus)

A Great Crested Grebe is seen feeding a chick on a parent's back at a nest in Walthamstow Reservoirs in London, UK.  The young grebes are very distinctive because of the black and white striping on their heads.   When young grebes are on their parents' backs, the parent dives under the water leaving the chick to float and paddle on its own.   The parent then surfaces and the chick climbs back to the parent's back...lesson learned.
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BarrytheBirder