I can't believe I got distracted on FB and almost missed some real hunting content?!?! Anyhow this thread is awesome and full of great info. I'd like to throw my .02 in the ring as well.
I am no expert but I do feel as if I'm getting a firmer grasp on what works for me. The first and most important aspect ive found to getting on big bucks is that there is no cookie cutter advice that will work every time. Each situation you encounter is different in the field and is unique and full of differing variables, but as your experience increases you will begin to be able to think outside of the "box" and tailor your target bucks situation to fit your style of hunting. I am an impatient bowhunter and here is my systematic approach to consistently kill big mature whitetails…
Pre season/Early season
Habitat is everything to me, and to the big boys! In the months of August/ early September I am covering as much ground around water as I can. Now water in and of itself has never proven to be something that I can key in on to pattern a big buck but it is a critical point of survival for ole tall tines when it's 90+ degrees outside. Water is usually in low lying areas which are cooler, the vegetation around water sources isn't as prone to drought, and typically water sources are great at creating natural transition lines in the habitat your hunting. To me this is a recipe for diversity, with the 3 things a summer buck wants, those being food, water, and cover in very close proximity to one another. When I find the right diversity of cover then I start looking hard for big tracks which can often be found easily in the soft wet ground. If I find a big track I'm hanging a camera and going from there. I have attempted every tactic known to man damn near to kill them early season and I find that in order for me to be successful I hunt over a hot food source with easy non-intrusive access. I find that bucks aren't moving much in the daylight hours and if they are moving it won't be far, usually less than 300 yards before dark. For most hunters this is just to risky to try and get tight to him in bedding. He's gonna hear you…when he does he's not moving till dark. Then he comes to check that "noise" out under the cover of darkness and gets a big old whiff of YOU and then your job just got way harder…
Pre rut
My favorite time of year to hunt and IMO the absolute best time to pattern and kill your target buck! October is a month where things evolve quickly for the whitetail buck. Big doses of testosterone are hitting his blood stream and his thinking slowly begins to shift from finding food for calories to finding does for breeding. The mature bucks are really starting to lay down sign at this point with rubs and scrapes and that's where I key in on where he's living for certain. I love when rub lines open up in October. Now while he more than likely is laying down that sign at night and that won't be helpful to get him killed it does offer and literal road map of his movements…I have walked so many rub lines back to a buck bed it's not even funny at this time of year. Typically on that rub line you'll find sign post type rubs strung out in a line of travel, then you may come upon an area where you see multiple small rubs in a concentrated area. This means the buck spendt some time there, perhaps on a preferred food source, use that info to your advantage. The problem I have caused myself however when hunting this time period is getting overly aggressive too quickly. You really have to make precision attacks at your target buck during this time frame of early October. I like to find a preferred food source within sight of bedding not to different than my early season approach but I'm a little more willing to press deeper into the woods to make that hunt happen. Late October is scrape hunting time for me! Ole tall tines will have at least one scrape that he checks regularly. Now I haven't come to a conclusion on why they make 50 scrapes and only 1 or 2 keep they're attention throughout fall but if you can find one of his precious pieces of broken ground he will be there during daylight hours!!!!!! The last week of October you can bet I'll be over my hottest scrapes every chance I get.
Rut
Sweet sweet November! Hunting the rut doesn't take near as much skill or require the precision style approach that early season does, which is why I've killed most of my P&Y bucks during this timeframe lol. I'm basically just hunting all the funnels I've found throughout early season scouting/hunting in my bucks home range. Sit as long and as often as you can. I also tend to not move my set as often as I do in early season. Early season I'm never hunting a tree more than 2 sits, evening than the following morning. During the rut I'll hunt a stand up to 3 full days 6 total sits. My theory on this is that a buck is roaming and covering ground. Sit still and he will eventually find you. Keep moving and you both may be missing each other all November….
Late season
By far the most difficult time of year to get on one. I'm looking for cover over anything. In all honesty though I'm not scouting much at this time of year. If you don't have the intel you need by now you'll likely not get it before seasons end. These deer are shell shocked after being hunted for 3 months. The big boys are almost never moving in daylight and they are usually very isolated from the rest of the herd in my experience. I'm always looking for hot food sources close to bedding when I am hunting late season. It's a very similar approach to early season tactics but with the understanding that there is ZERO room for error. You do have the added advantage of there being very few options to choose from for Deer forage compared to early season when the woods are full of vegetation which should help you narrow down what he's munching on everyday. Just understand if He hears, sees, or smells anything that makes him uncomfortable and you can guarantee he's not getting up before it's pitch black out!
I'm sure there's plenty I'll remember later but for now this will do.