A mated pair of Lessers, showing the variation in mantle color (graellsii to intermedius) common in this large colony of Lessers. Offspring are usually of intermediate shades.
A dead juvenile Lesser found in the colony.
A juvenile Lesser.
A juvenile argenteus.
A juvenile or first winter argenteus in flight. Note the coverts and the primary window.
A juvenile or first winter argenteus. Note the bill and belly.
A juvenile or first winter Yellow-legged Gull in flight. Note the coverts and the primary window. La Portel, France.
Yellow-legged Gull on left, Herring Gull argenteus on right. Leg and mantle color show up well. La Portel, France.
Common Gull.
Common Gull.
Juvenile Common Gull.
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