Rios are easier than Easterns. Watch out for the vegetation. South Texas brush will leave a mark. Snakes are just getting active when the birds are starting to gobble. Be careful where you sit.
In the morning, when moving in on roosted birds be careful. South Texas doesn't have a lot of hills to help you stay concealed. Also, when they fly down, if the brush is thick and you hear a gobbler it could be much closer than you think. Be prepared.