I like herons. We get 'm in two basic flavours. Tame, sometimes tame enough that if you go fishing somewhere it will sit next to you ready to snatch whatever you catch before you can get the hook out.
Then there's the more or less wild variety. A lot less used to humans and incline to take off if they think you get too close. This one didn't, judging by the beak it's so young it has not yet learned to act wild.
Herons have another advantage for us photographers, they're one of the few birds with a build-in grey card (you know, those cards with 18% grey you can get to really nail your exposure).
It's true, meter on a grey area of the bird using spot metering and you will nail the exposure each and every time!