From Daily Miner:
The Arizona Game and Fish Department was monitoring 58 endangered Mexican wolves wearing radio collars at the end of May, the department reported in its latest update.
The overall population of the wolves in the wild in Arizona and New Mexico was 113 at the end of 2016.
Wolves with functioning radio collars are listed by studbook number in the pack updates. They’re given an identification number preceded by capital M (male) or F (female) for adult wolves and lowercase letters for wolves younger than 24 months.
Arizona Game and Fish was tracking 10 different packs of wolves in May. The Baldy Pack was not located during the month. It has been more than three months since the Baldy Pack was located and their fate is now considered unknown.