The green heron is one of only two types of herons we see here in Oregon. The green heron is more rarely seen. I see the Great Blue Heron often as they pretty much stay year round and have nesting trees here. We have seen the Green Heron much less. Over the last few years I have seen only a few. This year, however, I saw as many as five on one recent day. I believe they have a nest in Delta Ponds. Some of those I saw seemed pretty small. This green heron was only about 50-60 feet away from me, as I stood on the walkway through one of the Delta Ponds.