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World Migratory Bird Day
October 11, 2025

World Migratory Bird Day is officially celebrated on the second Saturday in May (May 10th in 2025) as migratory birds journey to nesting sites and on the second Saturday in October (October 11th in 2025) as they return to wintering areas. Because birds do not all migrate at the same time and to provide the opportunity to observe birds on stopover sites as they journey, you are encouraged to celebrate when the timing is best at your location.