Symbols - What does heaven look like
The heron is not a terribly popular bird in the UK, despite its beauty. The main reason is that it is a very good catcher of fish, and here lies some of its symbolism. It is in some senses a symbolic fisherman.
Unlike the Ibis, with which it is often compared, its beak is straight, thus there is no connection with the Crescent moon.
But it is often a Black and White bird - thus there is also a connection with Darkness and Light - the balance between the intellect and the emotions that is essential to becoming a god. And some herons are either pure White or Grey, both key colours spiritually.
A Dictionary of Symbols – J E Cirlot
Among the Egyptians, a symbol of the morning and of the generation of life. Together with the ibis and the stork, it carried a favourable significance.