I'd never been there and was pleasantly shocked at what we found when exploring. Part of the Eggers Grove area is a lush green marshy jungle (see the second picture); the other part is an open prairie area.
In the marshy section, we found this Green Heron hunting for its lunch. I have to admit, I do wonder about Green Herons. Here it is hunting in this cloudy water marsh. Previously we saw one by the North Branch of the Chicago River (also kind of a cloudy water area). These type of birds must have cast-iron digestive systems.
(Click to enlarge the pictures)
I have a few more pictures of the Green Heron at Eggers Grove at my bird-watching site, which is here.