As the inventor of the world’s first app for conducting photographic mark-recapture research by collecting data with smartphones, I’ve adapted wildlife population research methods to create a citizen science approach to scientifically estimate free-roaming cat population sizes in urban and suburb areas. The goal of this work is to study the effectiveness of spay/neuter programs over time by conducting long-term, controlled field studies in partnership with other organizations.

Read more about my nonprofit, why it’s needed, how it works, what my research questions are, and how you can get involved at I’m currently partnered with an animal shelter in Chicago to monitor the population-level impact of their targeted spay/neuter program.