Pros:
A natural oasis in the middle of a primarily industrial area, The Aviary transports you in to a serene world of peacefulness and focus. Formally a haven for homeless campers, a ton of work has gone in to making this a quality course that works fountain creek in to a couple of holes, short wooded challenges that reward putter and mid skills, and risk/reward holes with rough that can swallow discs. Great views of Pikes Peak on hole 5, not crowded because chuckers can't handle the skill level needed. I love hole #1 across the creek to a doable but tight window. Hole 1 tells you that this isn't a course for risk averse folks. Fountain Creek will take discs on 1, 5 and 17 if you aren't careful.
Cons:
Subject to mud after rains, as not all tee pads are in yet (about 50% in). The walk down to the 5 basket can leave your shoes caked. I don't consider rough on the sides of 13 or 14 to be a detriment, but you can lose a disc if you don't pay attention. Need to finish the tee pads, and alternate basket positions would be nice. It does lack length a bit, as only 18 (and 2 for me) is really unreachable. Most holes are fairly straight, but trees add impediments you have to work around.
Other Thoughts:
You can hear inmates at the adjacent County Jail yelling and screaming on holes 2-3, so it can kind of weird you out. I have played this course over 40 times and it is always a quality challenge. Birds in the trees (hence the name) are abundant. Wind is usually south to north, but not brutal. 6-16 holes are the sweet spot in the woods. Kudos to Eric Bouchard and the City for adding a quality course to the area, especially now with the recent closure of the sadistic Sakuna in Black Forest.