Wildlife Crossing: California

California Roadkill Observation System

    About this project

    Roadkill occurs when vehicles collide with or run over wildlife, such as birds, mammals, reptiles, and amphibians. According to the Humane Society of the United States, over a million animals are killed every day on our roads and highways.


    The reseachers behind Wildlife Crossing created California Roadkill Observation System (CROS) to provide a way for people like you to report roadkill so that they can understand and try to influence the factors that contribute to roadkill. If you are cycling in California and see an animal that has been hit by a car, they want to know about it!


    You can use the online form on their website to enter in the details about the roadkill, including the location, type of animal, when you made this observation, and a few details about yourself. You can also print an observation form to take with you on your travels and submit your findings via the project website later.