The Great Blue Heron is unique in that they are very expressive in their actions.
In this photograph the male flew off and did not return right away. The female has been guarding the nest all day and by now is hungry.

She is not happy and stood waiting and watching in the direction he left.
He did return later. But from a different direction. We were both surprised, and I missed the shot.
I can see her thinking, “Where the hell is he?!!” 😅 😂
At one point she threw her head back and started calling… he got the message.
I hope he has a good excuse! LOL
I think he got a free pass, this time 😂