I have seen this little guy several times over the past few months. I always see him in the same area, he doesn't seem to wander far. This tiny bird (four inches) is supersonic fast and hides in the roots and brush along the river bank. So I had not been able to positively identify it. Today I was able to get off one quick click before it disappeared (less that 10 seconds). Lucky for me it is somewhat in focus and in the frame.