Life and Death on Alcatraz Island: The Secret Life of Nesting Birds on The Rock

It may seem like a barren, lifeless rock with only the haunting memories of the past, but a battle for survival continues daily throughout Alcatraz Island. Cut off from the mainland, Alcatraz is a protected, prime nesting ground for many bird species - especially black-crowned night-herons, gulls and ravens. These three species must somehow coexist during each breeding season - with herons and gulls seeking prime nesting real estate, protecting their eggs and chicks against the hungry, voracious appetites of the ravens. The drama doesn't end there, as raven populations themselves are strangely booming, and even resident ravens must fight off the antics of transient ravens. How will this struggle unfold? Bird experts from the U.S. Geological Survey will explain their theories, sharing their knowledge from over 20 years of Alcatraz studies - including rarely seen video footage of nesting night-herons and raven attacks. Bird fans, bring your questions - the talk and videos will be followed by an "Ask a Biologist" Q&A session.