Dancing Hoskuld
Deity
There is a generic 'poultry' map bonus.
I'd be a little leary about continuing to add more map bonuses. I would think it just makes the more critical ones harder and harder to find. I dont know how many games I've had to abandon because of no copper access. The extreme rarity of tin is also disappointing, thougb less critical.
I thought copper was defined as strategic which means there should be at least one per starting nation. They may all end up on the one continent but they should be there.
I fixed a recent bug that may have been placing, or at least considering, manufactured resources as map bonuses. They would not show up as they have null graphics. This may be what was causing SO's problem. It may also be skewing the other resources slightly.
edit Turkey is special because it only occurs in one region, North America. This makes it a candidate for a trade good. Mind you there is the Brush/Bush/Scrub Turkey in Australia which has a similar environment and looks.