There is a remarkable World Bird Sanctuary on the outskirts of our area. They always bring some flying wonders to Earth Day. Here we have a species of raven that is trained to take money from people's hands and drop it in the donation box. It does not get a percentage of the take. Pretty cool.
It can also fly around a larger area, take aluminum cans from people and drop them in a recycling bin. We'll get to that.
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