I would like to add a few points which are often overlooked, and haven't been mentioned. I also believe strongly, as many of the hunters on this board and many of the "experts", that regional differences can be dramatic, so you will have to determine how the birds act in your area. The following trends that I will describe pertain to New England and New York, where I hunt, but I know also occur throughout the US...
1) In the Fall, gobblers will strut and display for hens, especially those that are young that did not have a brood hatch in the spring. Just this week I witnessed an adult gobbler in full strut, displaying for a single hen, in the company of two younger gobblers. These younger gobblers were probably born late in the spring of 2005, and hence were between jake/2yr old bird status. Oh yeah, this was right across the street in my neighbor's front lawn [&:]
2) Although often considered, population within an area can dictate how birds act. If an area holds a large hen population, but the gobblers are hunted hard, I truly believe through observations that these gobblers are much easier to call (year round!), and that although small bachelor groups are formed, they are typically not far from the older/more dominant hens. For successful breeding, these outnumbered gobblers seem to stay in close proximity to the older/more fertile hens.
3) You can call gobblers in the fall!! This is so overlooked it's not funny. Like I alluded in (2) above, many gobblers or gobbler flocks stay close to hens during the fall. Oftentimes, at least here in the Northeast, the hen and gobbler groups will roost in the same area, then split off during the day into separate---but nearby---gender groups. Hence, because the birds are constantly talking to one another anyway, if you start calling
softly---and this is the key to calling in the Fall---you can coerce lone gobblers or entire gobbler flocks right into your setup. I like to set up about 20 yards inside a field edge, with 3-4 hen decoys, and cluck/purr/soft yelp. That strategy may sound very similar to tactics employed during the Spring [8D]
4) Pattern the birds, 'nuff said, period. In your case, you probably have a decent population of both hens and gobblers. If you're consistently seeing hens at that time of day, that particular group probably roosts nearby. If you can find the roosting trees, there's a very good chance that you will also find a gobbler flock, at least nearby.
5) Shhhh. Keep this one quiet. Toms, particularly jakes, can shock gobble like crazy in the Fall. I once had a large flock of toms gobbling at a coyote howl for almost 2hrs straight one morning, during the middle of November. Here in the Northeast, if we get a Fall or Winter thunderstorm, the woods erupt with gobbling everywhere...
S&R