The Fieldfare meets winter in roaming flocks that move to wherever the berries are.
Food: rowan berries, windfall fruit and other winter berries; a good rowan-berry season can keep large flocks in one place.
Numbers: how many are seen varies greatly from year to year depending on the berry supply and the cold.
Sound: the flock is often heard by its rattling "tcha-tcha-tcha" before it is seen.
Company: the Fieldfare often winters together with Redwings and other thrushes, and the flocks may aggressively defend berry-laden trees against intruders.