I had to look it up, but I’ve seen it quite often. Pretty sure I have at least one sitting on our wooden porch railing every year. I think one may have even flown into my house this year.
Ours is the eastern bluebird. I don’t think I have ever seen one, ever. We also have a state game bird which I don’t recall ever seeing (bobwhite quail).
I see plenty of robins, cardinals, and mockingbirds.
Missouri is one of a few states to have designated a state dinosaur. I have not seen that either. 
I’m in Indiana. Since the table at which I surf the web overlooks our backyard, I occasionally notice cardinals in the grass or on the deck.
Mockingbird probably daily.
I love the fact that Texas not only has a state dinosaur but that someone apparently successfully petitioned to have it changed and the old state dinosaur thrown out in favor of a better one. I hope there’s a legislative record of some state senator arguing that Paluxysaurus jonesi is totally awesome and that Pleurocoelus is shit.
Texas - I see mockingbirds almost daily, but (from spring through fall, at least) not as often as Oklahoma’s bird, the scissortail flycatcher. Or Kansas’s meadowlark. Also more likely to see cardinals and chickadees.