Turdus pilaris. They're back! Big flocks of these winter thrushes are roaming the countryside again now. They're pretty wary, but easily surprised, so you can get close if you walk carefully.
Appeared on the BBC Nature homepage 13/11/13.
Canon EOS 5D mark III, Canon EF 500mm f/4L IS II USM, Canon EF Extender 2x II (handheld).
1000mm, f/10, 1/1000, ISO 800.