Speaking of CV + birds, I knew the guys behind a small company called Ornicept. Basically, wind turbines kill birds. To protect birds, you have to collect data

Speaking of CV + birds, I knew the guys behind a small company called Ornicept. Basically, wind turbines kill birds. To protect birds, you have to collect data on birds in the area. The standard way of doing this was literally putting a guy in a lawn chair for a few hours each day counting birds, and then extrapolate the numbers. They put some cameras in the field and run CV on the footage to count the birds instead. Cameras are cheaper than people in lawn chairs, apparently. I don't know if they still do this, but it was their initial product.