Testing has confirmed that highly pathogenic avian influenza (HPAI) was the cause of death for a Chilean flamingo on January 8 and a harbor seal on January 9 at Lincoln Park Zoo. The zoo mourns the loss of the Chilean flamingo, Teal, who had recently hatched and was acclimating to her surroundings, and Slater, a 7-year-old harbor seal known for his energetic nature.

“This is sad news for wildlife and for the zoo team. Not only are we facing the first known cases of HPAI in animals in our care, but we’ve lost two amazing animals,” stated Dr. Kathryn Gamble, Director of Veterinary Services at Lincoln Park Zoo. “While highly pathogenic avian influenza is a naturally occurring virus in free-ranging waterfowl, more mammal species have been reported to be susceptible to HPAI since 2022.”

The source of exposure remains unknown, though it is likely from contact with an infected waterfowl. The zoo emphasizes that visitors are not at risk of contracting HPAI from its animals. “Because highly pathogenic avian influenza is spread by free-ranging birds, it is no riskier to visit Lincoln Park Zoo than to enjoy a walk outdoors,” assured Megan Ross, President & CEO.

The zoo had already implemented its multi-tier proactive HPAI Response Plan before these incidents were confirmed. Measures include additional protective equipment and reducing cross-species contamination risks. Some bird species will remain behind closed doors, and the McCormick Bird House will be temporarily closed.

“Sharing this news of highly pathogenic avian influenza in the area is important for our community at large,” said Seth Magle, Director of the Urban Wildlife Institute. He advised against handling wildlife and recommended keeping pets away from wild animals.

Lincoln Park Zoo continues its mission as a leader in conservation efforts locally and globally while being free and open throughout the year.