I checked out this trail that runs through a transverse section of Forest Park.
A first for me was watching a flock of chestnut-backed chickadees. These little birds look just like black-capped chickadees until you get a good look at them. Once you have them in your sights you can see the chestnut coloration on the back and sides. According to my bird book the flock members have a habit of flying one at a time across openings. This is a little behavioral trait that is interesting to watch.
I also saw a pileated woodpecker and some impressive excavations it and its kin had wrought on some dead and dying trees.
pseudoisaac 