I have never seen this before,,,a Great Blue Heron didn't see me and came flying low over my head,,,a male Redwing Black Bird at the top of a spruce tree watching out for their young just learning to fly, came out of the tree attacking the Heron in the back. A couple of days later as I approached the pond I scared up another blue heron and as the heron started flying from the pond a male Redwing came out of the top of a tree and attacked this heron. So I am guessing that a heron may be a threat to baby birds.
