So right now I'm actually going to endorse something: the Texas Parks and Recreation department offers a pass to get into all of their parks. It's a yearly pass, and it really is worth it. If you're interested in the Parks Pass, information can be found here.
Today while on a picnic in Brazos Bend State Park, we were treated to several hundred wood storks flying directly above us. They were flying pretty low, I would guess only 100ft tops. It was a wonderfully impressive sight. We also saw several alligators, coots, orb weavers, etc. Also, one VERY pretty copperhead that my friend Jess told me not to cuddle with.
All in all, Texas parks really have a lot to offer. There are quite a few of them, and it really is nice to be connected to nature that way. :)