 The fieldfare is omnivorous . Animal food in the diet includes snails and slugs , earthworms , spiders and insects such as beetles and their larvae , flies and grasshoppers . When berries <unk> in the autumn these are taken in great number . <unk> , <unk> , <unk> , yew , <unk> , dog rose , <unk> , <unk> and <unk> are all <unk> . Later in the winter <unk> apples are eaten , <unk> attacked in the field and grain and seeds eaten . When these are exhausted , or in particularly harsh weather , the birds may move to marshes or even the foreshore where molluscs are to be found . 
