The goal, according to the company's website, is to reward residents for choosing to ride their bikes or take public transportation rather than drive. The company hopes to put a birdhouse on every street in Amsterdam to help the city's residents get tangible feedback for their collective green choices, and perhaps even encourage them to organize car free days. Another benefit of the project, the company says, is that it will provide pollution data on a hyper local scale that can be provided to researchers.