A dataset published by the advocates in January shows the name, sex, color and age of each horse in the WHR.
Sweetheart and Boone appear on rows 28 and 29.
The darting status of the mares was not provided.
Calculations added by Western Horse Watchers indicate 75 males, 108 females and 27 foals (born in 2022).
Females outnumber males by 1.4:1.
The average age of the males, including foals, is 8.3 years.
The average of the females is 9.3 years.
The over-20 category consisted of two males and fifteen females.
Foals represented 14.8% of the population, higher than expected, suggesting the herd is growing at a rate of nine to ten percent per year.
Data from last year, for roundups starting on or after July 1 (after foaling season), indicated a weighted average birth rate of 17.4%.
If the goal is to slow population growth or bring birth rates in line with death rates, the program is not very effective.
Perhaps it has been curtailed or shut off.
With birth rates and breeding patterns determined by the advocates, not nature, the herd is not wild and the area qualifies as a curated horse exhibit.
RELATED: The Sad Story of Sweetheart and Boone.
Western Horse Watchers Association 