I was able to get a better look and photo last night of the owlet (GHO) in Forest Park. I've updated my blog post accordingly including some observation tips and you can read it here:

Thanks for reading!
Mark H.X. Glenshaw
City of St. Louis
Forest Park Owls
[log in to unmask]

The Audubon Society of Missouri's Wild Bird Discussion Forum
Archives / Subscription options / ASM Website / Email the list owners

ABA Birding Code of Ethics

ASM Spring Meeting: May 3-5, 2013 in St. Joseph, MO. Details and Online Registration