The colts are in a constant state of provoking, testing, and tolerating each other. The also bond with each other and have a hierarchy of status among their herd-mates.
During the first few days of life the mares are very vigilant with other herd members about keeping their distance from the newborns. As a whole, though, the mares and the stallion are very tolerant and accepting of each other.
A curious mare receives a strong warning to keep her distance from a newborn foal.
Finding this mare in a field of oats gave me a real opportunity to see her new foal. Only a couple of days old in this picture, I had been trying to get a glimpse of this filly; her mother was always in a hurry to move away when I showed up and kept herself between me and the foal until she was out of sight. She is an elusive mare with a newborn so I started calling her Nemisis.