This bank acts as a nest site for many pairs of Sand Martins. The adult birds fly very rapidly both into and out of their nest holes and this makes photographing them a challenge. One technique is to focus on the bank and wait for a bird to appear. On this occasion, several arrived or were leaving at the same time.
Location: Barnes Wildfowl and Wetland Trust, London
Family: Swallows, Martins (Hirundinidae)
Species: Sand Martin (Riparia riparia)
Date taken: 18/06/2013