The city of Anchorage near Louisville has several old stone bridges like this one over Owl Creek on Bellewood Road. I spotted this male mallard and pulled off the road to try to get a few shots without causing a big traffic snarl. Here you can see his handsome silver gray sides and brown breast.
Mallard male in profile to better show off that iridescent green head and bright blue wing pattern.
And finally, he gets fed up with being camera stalked and goes into liftoff mode--all the better to see his black hind end with curled tail and white tail feathers.