World Migratory Bird Day observed in May and October with theme Power of Community Science

Key facts

• World Migratory Bird Day is observed twice annually in May and October to align with migration patterns in both hemispheres.
• The theme for World Migratory Bird Day 2026 is the power of Community Science.
• The campaign is coordinated by a network including Environment for the Americas (EFTA), The Convention on the Conservation of Migratory Species of Wild Animals (CMS), the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), and the East Asian-Australasian Flyway Partnership.
• The 2026 ambassador species selected to represent global flyways are the American Oystercatcher, Ruby-throated Hummingbird, Barn Swallow, Cinnamon Teal, and Merlin.
• The Ruby-throated Hummingbird is currently listed as Least Concern on the International Union for Conservation of Nature (IUCN) Red List.