In the most extreme example of this, the woman who is in charge of the bins for our block of flats was standing almost next to a crow ripping apart rubbish bags to get at some food without doing a single thing about it. Considering that you can get rid of a crow simply by pretending to throw a stone and that they sometimes attack people’s heads as well rip open rubbish bags, it seems strange that the Japanese don’t do more about these pests.
I think it’s partly a (Buddhist?/ Zen?) attitude of letting nature get on with its natural business, as also seen with the Japanese generally swatting at flying bugs much less than I do. More than that, though, I think it’s mainly not taking the initiative and doing anything unless you’re told to – if the government announced that crows were the enemy I’m sure you’d soon see an almost Cultural Revolution-style attack on them…