G'day Black,
I may be a little different, but I rarely wear any camo at all. 95% of my hunting is done simply in plain dull clothing.
I don't hunt birds over here, but pretty much all my hunting has been done in jeans and plaid, or in the hot areas, old faded blue cotton business shirts and a pair of khaki shorts. Watching the wind, we have often gotten in real close, like well under 10 yards from pigs and buffalo in these clothes.
I do totally agree with what YosemiteSam said earlier,
"In all cases, movement & noise will give you away long before your color choices".
I'll add smell in there too. To me, keeping your scent out of his nose is No.1. They won't always run if they see you, but when they smell you, they're always gone.
That said though, a lot of very sucessful hunters wear a good break-up camo, so camo is certainly never the wrong thing.
So I think it boils down to what you think works best for you. Wearing camo or not, both certainly can be very effective. If it gives you more confidence wearing it, go for it. If not, don't bother with it and go hunting anyway.