signs of foaling

Question
WHAT SHOULD I B LOOKING FOR. WHAT R SOME SIGNS THAT SHE IS CLOSE
TO GOING INTO LABOR? SHE ALREADY HAS MILK IN HER SACK,BUT WHAT ELSE SHOULD I B LOOKING FOR.

Answer
she will get a wax on her nipples that is a sign she is almost ready to foal within 1-2 days. also when she is a few days before she foals she will get a cloudy mucus discharge after she urinates.
within 1-2 hours of foaling her belly will drop and her flanks will sink in. she will also keep her tail lifted a little.

-Musculature around the tail head becomes soft and flaccid  2 to 4 weeks before foaling.
-The genitalia relaxes
-The udder begins to fill during the same period.
-The mare  may show signs of uneasiness during the last two weeks of  gestation
-Waxing of the teats (sticky droplets on the ends of the teats) occurs 24 to 28 hours before parturition.
-Milky fluid may leak from the teats for hours or days  before labor onset.  
-Protrusion of "Milk Veins" along the lower side of the abdomen.
-Some mares, especially maiden mares, might not produce milk until after foaling.  
-Tail or Hindquarters rubbing.