I my town, I noticed dogs (that are usually freely wandering), are able to stop on red light and wait green light, not matter if humans are around. I guess this

I my town, I noticed dogs (that are usually freely wandering), are able to stop on red light and wait green light, not matter if humans are around. I guess this is because dogs are able to learn from those who are hit by cars. Second case are crows - they will pick up walnuts, wait for cars and throw in front of them, hoping car wheels will smash them. After that, they'll pick up eatable parts.