Scientists are still trying to figure out exactly why moose are dying at such a high rate, but it is hard to do with a necropsy because they have such high fat content that they decompose too much in 24 hours to tell their story.
Ticks could be one factor: with less snowy winters, tick infestations become much more severe (you should check out my other post about ticks if you’re interested in finding out more), but so could brain worms, heat stress, and pine bark beetles. Climate change links these together.
You can see from the photo that this moose is losing its fur from scratching or biting and all the little dots on its shoulder are ticks. It is starting to look pale - what people call a ghost moose.