These are some of the changes I have seen in 50 plus years
I will get some peoples boogeyman out of the way first. We have way more predators now than we did back then. 1080 had been banned less then ten years earlier. In 78 a good coyote would sell for a 100 dollars, That is like getting nearly 500 dollars today. Just about everyone was hunting and trapping coyotes. One friend of my fathers had a Piper Cub and was shooting, he would get 100's of coyotes. Far fewer coyotes back then.
I saw my fist lion tack in 78, it was a big deal, it was 8 years later when I saw the second. Now I see lions and track often, do a long hike in the rough country with a fresh snow and there is a good chance you cross a lion track. Way more lion now than when I first started hunting.
There was no bears to speak of in the 80's, First bear I crossed paths with was in the 90's, Now bears are everywhere. My brother has a camera on a rubbing post, Over 20 different bears used that post last year. I am not a big blame it on the predators kind of guy, but I would be naive to think that there is no effect. I think that the biggest effect is on the deer herd recovery after a drought or bad winter. The deer have always been boom and bust in Eastern MT, The difference now is the herd doesn't bounce back nearly as fast as we did form winters like 78 or 96. On Public land there is hardly any bounce back at all. Predators are likely at least part of the reason populations do not bounce back nearly as fast. I am not a blame it on predators guy and find the argument a bit of a distraction because I just don't see a viable way to address high predators numbers. 1080 is not coming back, I don't see coyotes bringing 500 dollars anytime soon. The lion quota often doesn't fill if the weather conditions are not ideal. The bear quota need to be increased, but even three times the current number is not going to matter much. We are just going to have to learn to live with predators. I am not sure doe tags on public land should ever come back.
As greenhorn mentions, the fires have been a big change. The first landscape type fire was in 2000. It burned 80 thousand acres and all of one of my go to spots. Before the fire, there was some open south facing slopes and the rest was mostly timber. Now most of the trees are gone. More deer food, less cover, The drop in quality bucks happened fast. In the late 80's and 90's I would find during the summer at least one 180 or better buck there and often two or even three. Since the fire I have seen two in the last 25 years. One of those is the buck in my avatar. Before the fire you could find the bucks on the south facing slopes eating sumac all summer long, as soon as the leaves were gone from the sumac the bucks would move into the timber and it was much tougher to find them and even if you did find one across the canyon it was hard to get a shot with out busting them in the timber. Now without the timber for cover, even a novice behind the glass can find the deer and with today's gear getting a shot is not hard. Add in snow and the rut and it is almost like shooting fish in a barrel. Very difficult for a buck with the potential to be big to live past age three and most don't make it past age 2. The only old big deer I have seen in the past 20 years survived by moving to lightly hunted private for most of rifle season or lived where there was large blocks of timber. With the Remington fire last year, there are no large blocks of timber left, Around 90% of the Custer has burned in the last 25 years, some of it more than once. The fires are a big reason why the quality of the bucks has tanked on the Custer in the last 25 years. It is not just the bucks, the fires haven't helped the does. FWP has given out as many as 11,000 doe tags in region 7. Individual hunters could buy enough tags to fill a pickup. Hence the term truck load tags. The number of tags is not the problem, during good years region seven can handle that kind of harvest if it was distributed evenly throughout the region. Problem is the harvest is not evenly distributed, it heavily skewed to public land. A party of three or four hunters with truck load tags can just about wipe out a doe family group when there is little to no cover for the does to hid. Seen it happen. Once the does are gone it takes years for them to repopulate with the fidelity does have to a home range. The fires have been great for making deer feed, but with out cover the deer are very vulnerable to hunters with rifles, add in snow and the rut and they don't stand a chance in an OTC district. I can go out of winter range and find Rabbit brush six feet high and winter fat up to my knee. Tons of feed, not may deer to eat it. The good news is with the recent cuts to doe tags and the elimination of doe hunting on Public land in regions 6 and 7, we are in the start of the recovery. It is not good. but it will improve. The deer food is there for it to happen. Bad news is. soon as deer herds show a recovery we could be right back to selling 11,000 region wide truck load tags and we will be right back to where we are now or worse the next time a bad winter or drought hits. Getting back to the quality bucks I enjoyed in the 90 is not going to happen until the timber grows back or there is some kind of change to season structure. Even with season structure change I don't have much confidence were will ever make all that much improvement in the quality of the bucks.
The make up of the hunters has changed.
When I first started hunting most of the hunters were from SE MT, ,the nearby small towns and the Reservations, Billings hunters were the outsiders.and from the most part they were day hunters and weekend warriors. You almost never ran into someone from west of Billings. The NR were from the Dakotas and the Midwest. The vast majority would come for opening week and were gone by the end of the second weekend. There was plenty of hunters, but for the most part it was pretty low impact with the bulk of the hunting pressure confined to the first week of the season and weekends. Now you still see some local hunters, but for the most part the locals have ether quit hunting or worked there way onto some private land. You almost never see someone from the Crow or Cheyenne, because quite frankly the hunting is quite a bit better on the reservations than it is on the Custer. Billings hunters have become almost like next door neighbors. There are lots of hunters from the western part of the state and there are just as many Washington and Oregon hunters as hunters from the Midwest. Now most of the hunters are camping and staying a week or two. The first week of the season is busy, but is mostly people looking to find an elk. Most of the deer hunters wait until the rut starts and pressure on deer is concentrated in the three weeks around Nov 15th. It all adds up to high impact non stop pressure for the enter five week season. I am sure that there is still some hard to get to spots with quality hunting in western MT, but I have a hard time believing the much of the western part of the state has not seen serious decline in the last 40 years. If western Montana was holding steady, we would not be seeing the crowds of western Mt hunters here in the east and Washington and Oregon hunters would not be driving a 1000 miles extra to fill their tag on a small three or four point mule deer.
The elk
I saw my first elk in SE Mt in the early 70's, the next time I saw an elk was in the early 90's on Powder River, in five years they were over the divide on Tongue River. Now I if I try I see elk every day, There are more elk then mule deer. When elk move in mule deer tend to struggle. It is not just the competition with the elk, it is also the people the elk bring. Pressure during archery season before the elk was nonexistent, now archery season is busy. There are 280, soon to be 325 bull tags given out, and all most none of those hunters is hunting by themselves, most have one or two scouters helping them find a bull of a lifetime. There are also plenty of people with cow tags and you can shoot a cow or a spike off of the Custer with your A tag. All adds up to more hunters and all of them have an OTC deer tag to fill if the opportunity presents its self. Some places on the Custer that were very good deer hunting in the 90's are so full of elk hunters that deer hunters are looking else where and getting into places that never saw a hunter in the past. The elk have added a lot more pressure.
Increased opportunities
When I first started to hunt as a small boy with my dad you could shoot two buck deer and the season ended two weeks earlier. By the time I was hunting in 78 we were down to one buck and the season was extended to the weekend after Thanksgiving. The elimination of the second buck tag is the only permanent reductions in opportunity in my lifetime. Maybe the recent restrictions on doe tags will be the second. We have added a two day youth season, started the season on Saturday and a muzzle loader season. In 1978 when you filled your A tag you were down to hunting birds the rest of the year. Not so anymore. now we have up to 11,000 mule deer doe tags, whitetail doe tags, Cow elk tags, Rifle elk tags if you are lucky, if you are not you can still hunt for a cow or spike with your elk A tag. A bear season that starts in September and lion hunting during the winter. It all adds up to more hunter days and more pressure all fall long.
There are more change, but we have a 1000 character limit. If I get time I can post more.