While anytime of year is good for scouting, one needs to realize where deer are during mid summer may not be where they are during the rut, especially the mature bucks. While most Ag land can be scouted from the truck using a pair of Binos, if the area to be hunted is big deep woods, you need to walk it and cover it well. Trails and patterns will be much less obvious in big.deep woods. Mature bucks use different trails in the woods than does and young bucks and many times these trails are not readily seen. While Winter patterns will tell you what deer numbers are left after season, in many areas(especially Northern areas) winter patterns are completely different that the other seasons. Most deer in Big Woods/Northern Areas are just trying to survive till spring. There is little hunter pressure so cover/sanctuary is not nearly as important as finding food and conserving energy.
One also needs to remember that other than rubs, deer sign disappears with rain, dry weather or when the leaves are falling. Around here, come late October/Early November when the Maples loose their leaves, anything but rubs and a scrape made a half hour earlier is buried beneath newly fallen leaves. Even the heaviest of trails are difficult to find unless you know they are there. While walking a small parcel of property(like 40 acres) may tell you iof there are deer around, it does relate to how successful one may be on that parcel. Escape routes, bedding areas, amount of cover and how much pressure there is in the area surrounding the small parcel has a huge impact on hunter success, regardless of deer numbers in the general area. Tracks, scat can be made at night during movement and not relate to deer movement/bedding during daylight(huntable hours) in the area at all. Trail cam pics can be the same.
Being a new hunter, you need to learn general deer movement, habits and patterns which you can relate to the area you hunt. Sign is good, but knowing why the sign is there is paramount to success.