Maybe someone can help me with this ID:

Yesterday afternoon I was kayaking on Weems Creek in Annapolis with my
Golden Retriever (Oiseau).  I saw this very small heron fly out of
some grasses, hugging the shoreline and then it went out of sight.  A
few seconds later, I saw it fly back and to a rocky shore with grasses
very near to where I was sitting (with dog on board).  I slowly
paddled over and got within 4-5 feet before Oiseau decided to jump up.

The bird in question had stood motionless up until my dog decided to
try to exit the kayak. The bird immediately flew off.

It had a dark head, yellowish-gray thin legs and a light grayish chest
and body.  It wasn't thick in the neck and bill like a Green or
Black-Crowned Night Heron (which I've seen around Weems Creek before).
 It was small and more slight.... easily less than 12" H standing.

It did do some sqwaucking as it flew off into some thicker grass.
Anyway, I've narrowed it down to a few options, but wanted some others
opinions.  Feel free to email me off the list.

Thanks,

Dan Haas
West Annapolis, MD