Peter P. Marra
From Wikipedia, the free encyclopedia

Peter P. Marra is an American ornithologist, conservationist, and educator. Marra is the Founding Director and Dean of the Earth Commons and a biology professor at Georgetown University.[1] Marra is a former director of the Smithsonian Migratory Bird Center. Marra is best known for his research on domesticated and feral cats and their impact on bird populations.[2]