National Prairie Day is observed in the United States every year on the first Saturday of June. Established by the Missouri Prairie Foundation in 2016, the day aims to highlight the significance of North American prairies, which are vital ecosystems characterized by diverse grasslands and rich biodiversity. Participants engage in activities such as visiting local prairies, attending events organized by conservation groups, and spreading awareness about prairie conservation efforts on social media using the hashtag #NationalPrairieDay. The day also seeks to recognize the importance of preserving remaining original prairies and encourages the reconstruction of native grasslands. Key sponsors include Grow Native!, the Ohio Prairie Foundation, and the Missouri River Bird Observatory.