So, I was looking at this as I found some mapping of it on FB and decided to dig a bit deeper.

Interesting, when you look at the Boundary Group Study.
Looks like they collared appr. 27 deer, and NOW, 22 of them have fallen into the "Mortality Category" already!
If I am correct, they only have about 5 left to study!???
AND, look at who was "responsible" for their demise.....Cougar.

Cougar also for W.Okanagan area as well, just not as bad.

Here is the link:
https://bcwf.bc.ca/southern-interior...roject-update/

One thing, on FB, the map showed more of the actual "deer movement" where as the one on the link is a bit more
"generalized".
(Not sure where to find better details??)

Shows how few deer are surviving for any length of time, imo.