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AI catflap to stop Adorably Named Cat, Metric, from killing birds, built by Amazon engineer. Built by Amazon's own DeepLens, the cat flap in his door is connected to an AI-enabled camera. The camera was loaded with machine vision algorithms trained by the engineer. If Metric was coming or going, the flap would lock for 15 minutes and Hamm would get a text. The system also sends a donation to the National Audubon Society, which protects the birds cats love to kill.