A short video of the Tandy Hills BioBlitz. This was a citizen science event with hundreds of people documenting species using iNaturalist. From www.tandyhills.org :
Tandy Hills Natural Area (THNA) is a 160-acre indigenous remnant of Fort Worth prairie located in the heart of Fort Worth, Texas. The land was obtained by the City of Fort Worth Parks and Community Services Department in 1960 and designated a “natural area” in 1987. Since 1990, the park has been managed by the Fort Worth Nature Center and Refuge. Noted for its unusually complete collection of prairie flora, THNA contains more than 500 native plant species. The show of spring wildflowers is unsurpassed in the Metroplex. The land is a living example of how most of Fort Worth and the Great Plains appeared in predevelopment times. THNA is adjacent to I-30 and less than 5 minutes from downtown Fort Worth, Texas. The fact that it has never been plowed or developed and survived into the 21st century in relatively pristine condition is remarkable.