A lone coyote called Floyd has swum over a mile across San Francisco Bay to Alcatraz Island. Scientists are actively watching him to study how he survives on the island. Floyd is eating birds on the island, known for its large seabird colony. Whether Floyd can stay depends entirely on his behavior, says Aidan Moore, a local tour guide. The island has no fresh water, so Floyd’s survival might need human help. Floyd appeared thin and cold when he arrived, but is now looking healthier. Video of his arrival was captured by a tourist. The Golden Gate National Recreation Area confirmed it is the first known coyote on Alcatraz since 1972. Park staff are studying the coyote to understand any effects on seabirds during their sensitive nesting period from February to September. Alcatraz remains open to visitors. Coyotes are common nearby, especially on Angel Island, where fresh water and more prey are available. However, Alcatraz is just 22 acres with no big prey animals. Janet Kessler, a naturalist, thinks Floyd may have left crowded city areas to find new territory. Wildlife expert Brett Furnas says coyotes return to urban spots after being pushed out. Moore and others worry about Floyd’s future. He hides in spots away from visitors and leaves behind traces like half-eaten birds. DNA tests are being done on his droppings to learn more. Project Coyote, focusing on coexistence with coyotes, warns that many visitors might create safety risks. Founder Camilla Fox said, "Coyotes are incredibly resourceful and able to coexist with coyotes even in the most densely populated urban environments." She hopes Floyd will be allowed to thrive if not harassed. The final decision on Floyd’s fate will depend on his actions and the National Park Service’s evaluation.