We have a little green heron who visits the pond behind me each year, and your next-to-last photo above looks exactly like it. I don't know if yours is a green heron, but I do have a photo if you'd like to see.
I don't recognize any of those other birds at all, you do live in a fascinating place.
Despite the fact that it looks a lot more blue than green when you look at it in the sun, yes that is a little green heron - and yes I would love to see!
p.s - I have not forgotten about you, my mind is just two sandwiches short of a picnic right now...
Yes my green heron is quite blue, I caught it posing one day last summer and got a series of shots, the bird is a sort of clown it turns out: https://steemit.com/photography/@therealpaul/green-heron-poses-for-photos-then-tries-on-some-disguises