Adult deer are very strong animals and can cause severe injury to themselves and those trying to help them. Therefore if you find an adult deer that is sick or injured call your local game warden or Sheriff’s department.
Fawns (babies) that are safe to assist have spots, are not afraid of humans, do not run when approached, are the size of or smaller than a medium sized dog and are found during late spring/summer. If the fawn does not fit in this category it should be dealt with by your local game warden. A fawn that runs away from humans should not be chased to be caught; it will cause further injury or possibly death to the fawn.
Deer mate in the fall and have their young between April and July. Most have 1 baby but can have twins or triplets. Mother deer leave her babies alone all day and only come back to feed them at dawn and dusk to prevent attracting predators to her young.
If you find a fawn, check to see if it is injured or dehydrated. Check it for dehydration by gently pinching the skin on its back. If the skin snaps back to its original position (and it is not injured) then the fawn is fine-leave it alone. If the skin stays in the tented position and the fawn seems lethargic then it is possible that it has not been fed recently. Attempts should be made to see if the mother has been hit by a car or is incapacitated somewhere around the area. If the fawn is injured, dehydrated, has fly eggs on it, or if you know for sure that the mother has been killed, you need to rescue the fawn and locate a wildlife rehabilitator or a local wildlife organization.