Fieldfare

The fieldfare is easily recognised by its slate-grey head, nape and rump, dark brown back, blackish tail and boldly speckled breast. In flight the white underwing-coverts and axillaries are conspicuous, and the harsh flight call, tsak tsak, is also distinctive. The male's forehead and crown are bluish-grey with a brownish-black band down the centre of each feather, the lores and under-eye regions are black, and there are faint pale streaks above the eyes. (Wikipedia, general species account)

It breeds in woodland and scrub in northern Europe and across the Palearctic and is strongly migratory, with many northern birds moving south in winter, when it is found in large numbers in the United Kingdom, southern Europe, North Africa and the Middle East. It is omnivorous, eating molluscs, insects and earthworms in summer and berries, grain and seeds in winter. Fieldfares often nest in small colonies, possibly for protection from predators, building the nest in a tree where five or six eggs are laid. (Wikipedia, general species account)