Here' s another link that has seasons and some of the prices and time it takes to get licenses and gun fees, etc.

http://www.anhtrvl.com/camou.htm

Do a Google search and put in:

Mexico Goulds Hunting Seasons

See what comes up. Lots of links. Bound to be something there. The only thing I could find on the NWTF site was the description of the Gould' s turkey.