well i live here in kansas and consider my self an avid hunter of bird and this is what i use.
gun- mossberg 835 ultimag that chambers 2 3/4", 3", and 3 1/2" shells
choke- i have a 15 dollar extra full choke i got at wallmart.
shot and shells- i use size #4 shot and any 3 1/2" magnum loads work, although i prefer federals.
calls- i have one diaphram call i use its a single reed "double d" call made by h.s. strut, i also have a couple of slate calls that i love.
camo- like anything that blends with where ur hunting and make sure to leave no skin showing, complete cammo everywhere.
decoy- i dont use one, cuz i dont think they are necessary.
hope this helps!