During the first week baby squirrels are pink with no hair and closed ears and eyes. At two weeks age squirrels turn a pinkish-gray color. The third week brings tiny hairs to the body and the hair on the back darkens. At 3.5-4 weeks the ears begin to unfold, fur starts to show at the nose and tail and spreads toward the body, turning brown on the muzzle and eyelids. At 4-5 weeks there is a line velvet hair coat.
Silver fur appears on the dorsal aspect of the tail.
Milk powders should be kept frozen. Alternative formulae's are Esbilec or Multimilk. Do not use the liquid Esiblac as it is the mostly likely to cause bloating. Esbilac powder is the best. For squirrels over 4 weeks that are well hydrated and used to the mixture, mix it at 1 part powder to 1 part distilled water.