The Essex Naturalist 91 • The deer do not live entirely within the forest, hut use it instead to lie up in during the day, and move to adjoining fields to feed at dusk. It is this diurnal movement, and the freedom to perform it, which is the crux of deer distribution in the Forest. • Fallow no longer reside in the southern part of the forest as urbanisation prevents any potential access to fields in the south. • Visitor pressure interferes with this diurnal deer movement by acting as a barrier to the deer's passage, rather than being just a disturbance. Similar barriers include major roads, canals, motorways and railways. • The fallow deer have an annual behavioural cycle which influences their distribution patterns. One way to test part of the behavioural hypothesis is to identify barriers to diurnal movement from an OS map, then it should be possible to predict the presence of deer. Before assessing the evidence to support or refute these two contrasting hypotheses, it is useful to consider the history of the deer in the forest (see Appendix). The history of the black fallow deer in Epping Forest is a noteworthy one - tied up with royal hunting, poaching, ancient wood/pasture cultivation and notorious disreputable figures such as Dick Turpin. With this background it is easy to succumb to the glamour of history and to accept the historical hypothesis as apt. In this research we attempted to distinguish the historical and behavioural views and to draw out the consequences for deer and forest management. Results Information concerning the deer of Epping Forest is scant and often conflicting. In particular, no recent Corporation of London deer count exists for the main forest, only the Lower Forest north of Epping and the bufferlands north of the Robin Hood roundabout. Our data is therefore divided into primary, secondary and tertiary evidence. Primary evidence is novel data gathered by the author MJD (Dunn, 1997) and secondary evidence is the novel compilation of previous work done in the area. Tertiary data is information already gathered e.g. by the Corporation of London. All primary evidence was gathered during fieldwork conducted between April and August, 1997. The study area covered all of Epping Forest north of the Robin Hood roundabout and the adjoining bufferland estates, excluding Galleyhill Wood and Epping Long Green. Primary Evidence Nitrogen Analysis Samples were taken of grass and other ground flora from sites where evidence of deer use was medium to heavy. These samples were tested for average nitrogen content. This was to ascertain whether grazing quality was better in the