One of the prettiest, flashiest birds in this area is the Northern Cardinal, (Cardinalis cardinalis). I photographed this male at the bird blind at San Angelo State Park when I was out there recently. With the overcast, cloudy skies acting as a diffuser, the colors really popped.
I photographed this bird with my Canon 7D with Canon 500mm lens mounted on my tripod. Exposure 1/800 sec. @ f7.1, -0.3EV, ISO 1250. Center-weighted metering and aperture priority. Distance to subject approximately 35 feet. Shot in RAW with post processing in Photoshop CS5.
Click image to see an enlargement.