My 16th birthday was in December so do I need to get a duck stamp to finish the rest of the waterfowl season?

I was 15 when the season started so I didn't need a duck stamp but after my birthday do I need one. Also when it is January do I need to get on or can I wait until the season is over?
Answer: 
The Federal Duck stamp is required for hunters 16 and older.  You must have one now that you are 16 if you want to hunt this winter.
Answered on: 
Wednesday, January 8, 2014 - 6:38 PM MST