Sarcocystis falcatula is a well-known cause of fatal pneumonia in some birds. particularly Old World psittacines. Here we describe fatal sarcosystosis due to S. falcatula in 3 penguins (Family Spheniscidae) under managed care. https://www.bekindtopets.com/special-deal-Accles-Shelvoke-CASH-22-Caliber-Green-3-Grain-Cartridges-1-000-Box-special-save/