Along with your federal duck stamp, you will also need a State, HIP, and hunting license to hunt waterfowl. All of that would be effective statewide, regardless of what county you purchased it in. Just pay attention to what "zone" you are in, as the duck seasons are different in different areas of the state.
Other than a Wildlife and Parks office, I don't think you can get a federal stamp anywhere but the post office...
That would be my understanding anyway... I'm not a game warden.
:cheers:
Isn't the federal duck stamp in Iowa the same as in KS?