The Assateague Island Alliance counted 77 horses on the Maryland side of the island in April, including one new foal, down from 78 in February.
The Park Service reported 75 ponies in March.
The herd size has gone down since the safe, proven and reversible darting program was shut off in 2016.
RELATED: AIA Going Dark on Assateague Pony Census?
Western Horse Watchers Association 