Black Tern in flight over Farmoor Reservoir

Farmoor Reservoir, Oxfordshire (September 2013)

For more information on this bird species see the following links:
Black Tern / Internet Bird Collection
Black Tern / Bird Forum
BirdLife International / Black Tern Chlidonias niger

Tv(Shutter Speed) 1/1600
Av(Aperture Value) 5.6
Exposure Compensation +1
ISO Speed 500