I may have to figure out how to retitle it. I would not have expected so many people to think that about birds!
If you ever find yourself surrounded by Crows, Magpies, Parrots, and Corellas (and Cockatoos in general), you might start thinking about both attributes.
Jet black crows have that intensity that Douglas Adams wrote about:
* https://2020science.org/2014/07/14/nanotubes-create-blackest...