Yes indeed, although it seems like there must be drawbacks we're risking, for instance: 1. If this takes the crows out of the workforce, are we missing out som

Yes indeed, although it seems like there must be drawbacks we're risking, for instance: 1. If this takes the crows out of the workforce, are we missing out something else they could be trained to do? 2. What are the risks the crows could start getting smart and stealing things that will be treated as litter, or stealing actual litter from bins? What if they learn they can harass people on the street for their "litter"? :) 3. Would it be better for the economy to give a humans jobs doing the cleanup vs supervising crow learning / reward? 4. Is it right to use crows like this? Are we impacting their ability as wild animals to survive independent of humans?