Gadwall and mallard flank feathers are #1 material for me tying jigs on hooks from a #2 to #12. #2 is rabbit, #3 is marabou. I've caught tens of thousands of panfish, bass and trout using duck feather jigs with a little flash and rabbit hair that I tie in at the throat. They are easy to tie and are a fantastic baitfish imitation. I'm surprised more tiers don't use them more.