Water Deer Reproduction - Fawn Care
Table of contents
Broadly speaking, although bucks may on occasion be observed interacting with fawns, including licking them (see: Social Behaviour), parental care is exclusively undertaken by the fawn's mother.
Wash and brush-up
Females initially groom the fawns quite intensively, but this falls away rapidly after about three weeks. Indeed, Stadler wrote in his Ph.D. thesis that as early as mid-July the frequency of licking had dropped to "only occurring exceptionally" among some does. Similarly, Christine and Robert Mauget found that, at Branféré, acts of grooming declined sharply from about 10 times per hour in the day after birth to just once per hour by the time the fawn was a month old.
The most thorough grooming event occurs immediately after birth as the female eats the birth membranes and cleans the newborn's coat. Subsequently, grooming is typically carried out during or close to suckling, and on very young fawns the dam will vigorously lick the anogenital region (i.e., the anus and surroundings) to stimulate defaecation, which the fawn is only able to carry out itself from around two weeks old. Once more plant material is included in the fawn's diet, firmer pellets that can be expelled easily are produced, but for the first few days the poo, or more technically meconium (first sticky tar-like poo composed of cells, amniotic fluid, mucus, bile etc. swallowed while in the uterus), is, as Raymond Chaplin described in Deer, "shapeless, yellow and sticky like egg yolk". Chaplin recalls finding a sickly fawn with its anus completely gummed up, suggesting this early grooming is essential for the fawn's wellbeing. When suckling but not grooming, Stadler found does remained in the alert posture he termed "sichern", with head upright and ears pricked.
Once suckling has been terminated, the dam can focus on grooming other areas of the fawn. At Whipsnade, Endi Zhang recorded the grooming focus during 17 bouts, observing that dams concentrated mostly on the head (63% of the time), then the anogenital region (14%), followed by back (8%), flank (7%), chest (6%) and neck (2%). Fawns remained with their mothers for two minutes, on average, up to seven minutes in some cases, during which they played and/or were groomed, before moving away to find another hiding spot – this broadly aligns with my observations of wild fawns. The act of grooming appeared calming for the fawn and, in his thesis, Zhang wrote:
"Fawns often responded to being groomed by slowly nodding their heads and closing their eyes. Fawns were very rarely observed to groom their mothers; when they did so, the grooming was of a very short duration and directed only toward the mother's face and ear."
Stadler observed that fawns also groomed themselves, from as early as less than 48 hours old. They were also observed to stand and scratch from about four days old.
Weaning
As discussed, the suckling duration drops off rapidly during the first eight weeks or so of a fawn's life. Indeed, the oldest age at which a fawn was seen to suckle at Whipsnade was 89 days (about 13 weeks) and, using a regression equation based on 54 suckling bouts for which age was known, Stefan Stadler calculated 95 days as the age when suckling duration was zero. Consequently, it seems that weaning starts when a fawn is 10 to 12 weeks old and is completed at around 13 or 14 weeks, by early to mid-September at the latest. Indeed, in mid-September 2025, Steve Carter photographed two fawns suckling (or attempting to suckle) from a doe of virtually the same size as them at Titchwell Marsh in Norfolk. While attempts to suckle by such well-grown fawns are relatively common in other deer species, this is the only example I have come across of three-month-olds attempting to suckle.
While weaning can take three or four months, fawns begin to take solids early on. Raymond Chaplin commented, in Deer, how fawns begin nibbling at soil and blades of grass within a few days, postulating that soil may help counter stomach acidity, aid the acquisition of gut microorganisms, or assist with the solidification of faeces. Stadler found that fawns manipulated objects within the first few days of life, some nibbling on grass during their first day; by a week old they regularly fed on grass and other vegetation. Similarly, Endi Zhang observed that grass intake increased steadily until fawns became regular grazers at around 10 days old, although initial attempts at grazing by very young fawns resulted in the blades being dropped immediately or rejected after brief chewing. In a video to his social media channels in July 2026, Paul Childerley commented that he was surprised how soon the buck he was hand-rearing began to eat leaves and flowers.
During feeding, Stadler observed fawns often tried to gain nose-to-nose contact with their mothers, giving the impression they were seeking information about what their mothers were feeding on. Stadler pointed to studies of bovids, where calves have been observed to stay very close to their mothers and "imitate" their feeding behaviour. We also have some limited data suggesting that rabbit kittens can gain information about the diet of their mother based on contact during nursing, although neither of these aspects has been studied in water deer to my knowledge.
By mid-July or early August, fawns will accompany their mother on grazing forays. Stadler described fawns gaining independence at an early age; even by two weeks old, they were regularly spending considerable periods of their active time alone or in loose fawn associations, sniffing, feeding, play-running, and so forth. Indeed, Stadler noted how:
"In 1987, as early as 13 July, the general impression was recorded that mother-young pairs were often hardly recognisable as such (unless suckling was seen)."
References
Bilkó, A. et al. (1994). Transmission of food preference in the rabbit: the means of information transfer. Physiology & Behavior. 56(5): 907-912.
Chaplin, R.E. (1977). Deer. Blandford Press, Dorset.
Mauget, C. & Mauget, R. (2009). Maternal investment and reproductive success in Chinese water deer. Current Zoology. 55(2): 102-110.
Stadler, S.G. (1991). Behaviour and Social Organisation of Chinese Water Deer (Hydropotes inermis) under Semi-natural Conditions. Ph.D. Thesis for Universitat Bielefeld, Germany.
Zhang, E. (1996). Behavioural ecology of the Chinese water deer at Whipsnade Wild Animal Park, England. Ph.D. Thesis to University of Cambridge. 196 pp.