Ardea Duo

Ardea herodias and Ardea alba. As a rule, the Great Blue Heron, on the left, is a larger bird than the Great Egret on the right. This GBH is a juvenile, so perhaps not up to full size, and, of course, the GE is closer. Speaking of closer.
The Blue walked towards me. I was very still.
Unfamiliarity with people, or already so attuned to them in its environment? (BTW, is this pattern herringbone or heronbone?) There are four water bodies in Green-Wood. Three of them had Great Egrets hunting on them this day, but since the first pond was empty when I circled back to it, I suspect there were only two egrets in all. One moves back and forth between two of the ponds. This is the second bird, briefly hunched up.