If I were you I'd get a couple books on how to do this off of Amazon. I plan all of my trips that way. It's all about working smarter, not harder. Someone has already figured all this out. Read what they did.
Not saying you or members of your hunting party will have any reason to worry about this but I do know of other hunters who's hunting trip was ruined. Canada is very strict about not letting in people with criminal records. Things that you wouldn't think would be problem. I know of one group where one of the members was refused entry into Canada due to a DWI. They drove so pretty much everyone got screwed and they ended up turning around and going home.
Good luck with the decoys, I would think you could get a guide to rent you decoys.
Make sure your ducks are in a row for bringing in firearms. As was already pointed out, make sure no one in your party has any surprises in their criminal record that will cause problems. DUI is a felony in Canada and will keep you out if you haven't requested a waiver in advance.
You may want to try asking for info on the Canadian hunters forum on the refuge. http://www.refugeforums.com/refuge/forumdisplay.php?f=12
How many people in your party ?
There may be a fly in the ointment for your trip.
http://www.americanhunter.org/artic...eling-american-hunters/?utm_source=newsletter
Thanks for the info. Just sent it to all the guys. Hopefully since we have a good amount of lead time we can get this done. But a phone call to customs is probably in my short term future.
Reading through the article, it appears that there is currently a work around in place for the problem. The problem is a software problem wherein an EIN is required on the Customs online application. If Customs gets that fixed before your hunt, then this is a non-issue. If not, then you have to go with the work around. Not a hunt killer as far as I am concerned, just one more hoop that you have to jump through, maybe another bridge to cross. lol
Personally I'd say **** CA. What kind of geese are you after that you can't get in the midwest and here in MD? Too much ball busting by CA Nazis to suit me. Then US Customs to boot. Why not go to SD for pheasants and hunt the central flyways for geese. Just speaking from personal experience with border BS. Went up for a bachelor party one time and one guy denied at airport for a15 year old DUI. Had chops busted over guns etc. on a hunting trip another time. Thought TSA gave you a work over, no comparison.