Yea, I am not 100% sure on all of Nebraska's specialty regulations, but I do know for a fact that their statewide rifle season runs for 9 days in the middle of November, and outside of that (again, as a statewide matter), you aren't permitted to use a rifle (except in late muzzy). I think a survey of states with the best deer hunting, including NE, will show that a shorter gun season is pretty common.
http://outdoornebraska.gov/huntingseasons/
As for your statements regarding bow season and bow hunters. Yes, I realize you were trying to use past statements made to come to the conclusion that it is easier to kill a deer during bow season. I just disagree with that conclusion. Yes, deer move more naturally during the bow season and are generally less pressured. I don't believe this fact alone makes it easier to kill a deer with a weapon with an effective range of about 30 yards v. one that can shoot over 200 yards. It is this difference in weapon that makes bow hunting a challenge, regardless of deer behavior. I could have nice deer walking by me at 50 yards all day long during bow, but wont kill them. During gun, any person, without practice or skill whatsoever could kill that deer no problem. So while you may see less deer during gun, you ability to kill them is much higher. But I would agree that someone looking for the ultimate challenge would bow hunt during gun (something I have done before). However, considering how limited a bow is in its range, without a special bow season, very few bow hunters would be successful.
That being said, the topic was with regard to whether to shorten a season. My point was that, despite the fact that deer are more pressured and move less during gun season, shortening the gun season would still have the greater impact on deer harvest than shortening the bow season (which you argue is a time when it is easier to kill a deer). More people gun hunt, and it is easier to kill a deer you do see with a gun, so even if fewer deer are seen, more are killed on aggregate. Also, I'll agree that herd management includes taking a certain number of doe. I don't believe that there is a herd management benefit to taking young bucks, especially considering how people, at least where I hunt, shoot everything they see with the gun (so plenty of young deer get killed).