We were just there this week. I'm not a bird watcher, but I hiked from the campground toward the river and there is a blind about a hundred yards in. There are others visible from the road between the highway and the park headquarters, some are small and nestled in the trees so may be hard to see from satellite images
The park signs are posted for the locations. There's a magic board with listed bird sightings that's really neat. I am just a fan of outdoors. It's not a hobby of mine, so I can't give detail information.
Thanks! Your answer is awaiting moderation.