I saw a hummingbird in this cloud forest, too. 

I noticed something which moved so swiftly similar to cicadas.  Eventually I recognised it as a hummingbird and thought, Ooh!!!  I pressed the shutter of the camera and then took one step forward.  When I tried to see it through the finder again, there was nothing but tree branches.  It had disappeared leaving only the buzz.

Can you see it around the middle of this photograph?