Black headed Gull (Chroicocephalus ridibundus) fishing at wier, Brockholes, Lancashire, UK Black headed Gull (Chroicocephalus ridibundus) fishing at weir. Once the breeding season is over the Adult birds venture out. In this case the bird is showing the ability to exploit a food source with skills learnt on rivers, lakes etc. Catching migrating fish as they negotiate a weir. In this image the gull is getting it's eye in.
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Black headed Gull (Chroicocephalus ridibundus) fishing at wier_UFP4043RM.tiff