Black-crowned Night-Heron

I saw two black-crowned Night-Herons while in Las Vegas. The first was at Henderson Bird Viewing Preserve seen in the top image. It was quite a ways from me, so I wasn't sure what it was as it looked like a big white blob. It didn't help that it initially had its head tucked away.
On my last day, before heading to the airport, I saw my first juvenile Black-crowned Night-Heron seen in the bottom two images. It came flying towards me from a bend in the stream I was following. I was hoping it was something a little more exotic, but I finally concluded that it was a juvenile Night-Heron. Still a nice find!