12 coat of the common. Both common and menil have white caudal patches which are ringed by black in the common and brown in the menil. There is no white patch in the black variety and no black edging in the white. Fallow have a much longer tail than the other deer found in Essex, it often being some 8 inches. In the common it has a black line down it, which is brown in the menil and non- existent in the black and white. Fallow males (bucks) have antlers which, like the red, are based on a single stem, which becomes flattened into a broad palm shape. However, some bucks, particularly young ones, occasionally do not develop much of a palm and the antler could be mistaken for that of a young red stag. Young bucks often only develop a single spike in their first head. All bucks, whether young or old and at any time of the year, have a sheath of hair on the penis. This is known as a brush and shows clearly in front of the hind legs. It is more prominent during the autumn rutting season, but is visible throughout the year. It is a feature which is not noticeable to the same extent on the other species. The bucks do not grow a mane, but the Adams apple becomes very prominent during the rut. Both fallow and red are herd animals and whilst small groups or single animals may be encountered they frequently live in large groups. Roe and muntjac do not live in such groups and so if one sees in excess of 5 deer together they will most likely be red or fallow.