Thank you both for the recommendation. I just had my wife order a copy for me.

Jaguars are larger than mountain lions. The specimens that show up in the Sky Islands of SE Arizona are a little lighter than the big boys of South America. I visited with some Coues deer hunters that have been hunting the exact same area in SE Arizona for 30 years, in early 2025, they told me that they had seen one jaguar track in those 30 years. Told me that track was much larger than any mountain lion track they had ever seen. I was trapping that area and just knowing that it was possible to have black bears, mountain lions and jaguars in that vicinity was a super cool experience. There's only been five or six of the big cats actually documented in Arizona in recent memory. All males with their pictures taken by trail cameras or bayed by a lion hunter's dogs. No breeding population is known to be in the United States. Each animal has a specific color pattern that ID's them just like our fingerprints do.
I had some other deer hunters that leased a ranch in the Sonora area of Mexico send me a picture of a jaguar at a water tank on their lease. There is a jaguar reserve in Sonora, Mexico that does have a breeding population. That's where biologists think our transient jaguars travel from.
I'm a retired Game Warden that should have been a furbearer biologist.