Great Blue Herons live here year-round. Green Herons have been here for a month or two now. But I have seen only one Great Egret so far. I saw it this morning at Delta Ponds and it was preening. It got into some interesting contortion, like this pose.

Here is a quote about the Great Egret from The Cornell Lab of Orthinology All About Birds:

"The elegant Great Egret is a dazzling sight in many a North American wetland. Slightly smaller and more svelte than a Great Blue Heron, these are still large birds with impressive wingspans."

"Great Egrets were hunted nearly to extinction for their plumes in the late nineteenth century, sparking conservation movements and some of the first laws to protect birds." (Something I hadn't known)