Mating Grebes

Great Crested Grebes (Podiceps cristatus) mating. The female had built a small floating island of twigs and, lieing flat on this, she enticed the mail, then used the island to support her weight.

Canon 1Dmk3. 400mm f2.8 L lens plus 1.4 convertor (560mm)
ISO400. f5 at 1/640sec.
Tripod.