They are smart indeed. Apparently they can remember faces (https://www.nytimes.com/2008/08/26/science/26crow.html https://www.nytimes.com/2008/08/26/science/26c

They are smart indeed. Apparently they can remember faces (https://www.nytimes.com/2008/08/26/science/26crow.html https://www.nytimes.com/2008/08/26/science/26crow.html) and colors (https://phys.org/news/2011-12-crows-colours-year-japanese.html https://phys.org/news/2011-12-crows-colours-year-japanese.ht...) which is how I'm guessing the crow I've encountered knew which clothes specifically to take a dump on. Really fascinating stuff.