Paul Brewer spotted this Peregrine Falcon recently.
They hunt medium-sized birds, especially ducks and shorebirds, and their aerial dive is something to see. They have been clocked at 200 miles per hour when diving for their dinner. To hear their calls, here is the link to the Cornell Lab of Ornithology: http://www.allaboutbirds.org/guide/Peregrine_Falcon/sounds
Thanks to Paul for allowing me to share his photo with you here. To see much more of Paul's nature photography, here is his website: http://www.capturingnatureswonders.com/