Buck, nice South American birds, especially giant hummingbird.
Daiv, Harriet, I'll defer to Daiv's ID of Sharp-shinned hawk. I may be choosing the wrong yardstick but
NGS's Field Guide to the Birds of North America, under Cooper's Hawk, says "...white tip on tail is broader than on Sharpshin..."
With this in mind, I selected these pictures to examine the tail tip:
Since this hawk's terminal band is gray, it must be the sharpshin. At this hour, I care more about getting to bed than resolving this issue. Daiv's statement, "It is one or the other...," suffices!
P.S. It's next day. I found an interesting resource
at
http://www.birds.cornell.edu/pfw/AboutB ... Dtable.htm and
http://www.birds.cornell.edu/pfw/AboutB ... rphoto.htm. Today, I'm favoring Cooper's hawk ID. It's just a tough call, based on such a limited perspective.