Here's the federal regs for possession. If you read it exactly as written, you can only have a "possession limit" in your freezer, which is generally 3 daily bag limits. Your possession doesn't change until the conditions below are met. Now, do most people do it that way? no....but we also drive above the speed limit. http://www.ecfr.gov/cgi-bin/text-idx?SID....d&rgn=div6
20.33 Possession limit.
No person shall possess more migratory game birds taken in the United States than the possession limit or the aggregate possession limit, whichever applies.
20.39 Termination of possession.
Subject to all other requirements of this part, the possession of birds taken by any hunter shall be deemed to have ceased when such birds have been delivered by him to another person as a gift; or have been delivered by him to a post office, a common carrier, or a migratory bird preservation facility and consigned for transport by the Postal Service or a common carrier to some person other than the hunter.