Most Recent Bird Surveys
The Lower Rio Grande Valley (LRGV) hosts a diverse array of flora and fauna. As stated in our WPP, “Migration routes converge in the LRGV, making it the most popular destination in North America for bird and butterfly watching.”
The Arroyo Colorado serves as an importance bird sanctuary for many local and migratory birds. Visit local World Birding Centers, state parks, and wildlife refuges to spot different bird and butterfly species!
Fall Migration
Estero Llano Grande State Park – November 2025
Hugh Ramsey – October 2025
Adolph Thomae Jr. County Park – November 2025
San Benito Wetlands – November 2025
Spring Migration
Estero Llano Grande State Park – April 2026
Hugh Ramsey – April 2026
Adolph Thomae Jr. County Park – March 2026
San Benito Wetlands – March 2026
