Today about 1:30 p.m. while on a lunch-time walk, my attention was drawn
upwards by a squawk.  I looked up to see a Great Blue Heron being pursued by
a crow species.  It was joined by another crow, that shortly broke off, and
landed, vocalizing, to reveal itself as a Fish Crow.  While I've seen crows
harass raptors, I have never seen them do so with herons.  This occurred in
Anne Arundel County, in a wilderness of vast parking lots with stray
high-rises. 

Kurt Schwarz
HowCo
goawaybird at comcast dot com