Unless the law has changed since this same topic was discussed at the same time last year, I would say the answer is "NO". Here's a copy and paste on what Blind Sow said about it last year and hopefully he'll get on this topic to help here this year too.
Reference assisting other deer hunters.
The ONLY deer season it is legal to assist other deer hunters is during the two shotgun deer seasons.
During either the bow season or the early/late muzzleloader seasons it is NOT legal to assist in any manner. In these seasons once you have shot and tagged your own deer you are done. Period.
In the 2001 Iowa Deer and Fall Turkey Hunting Regulations and License Instructions booklet it does state on page 4 under HELPING OTHER HUNTERS: "DEER-You may hunt and assist other deer hunters only in the season specified on your license." THAT IS IN ERROR and should be changed in the next booklet.
To reinforce my understanding of this situation I contacted my supervisor, who it just so happened, was on the phone to Lowell Joslin (Law Enforcement Bureau Chief). They confirmed the above.
FYI
TURKEY
A RESIDENT hunter having a valid spring turkey hunting license for any zone or season, may accompany, call for or otherwise assist another hunter who has a valid turkey hunting license for any zone and season. NONRESIDENTS may assist other hunters ONLY in the same zone and season indicated on their license.
FALL TURKEY
Resident hunters with a fall turkey hunting license may assist other fall turkey hunters in any zone throughout the combination gun/bow or archery season. The hunter doing the assisting may not carry a gun or bow or shoot a turkey unless he/she has an unfilled transportation tag valid for that season.