The Texas Parks and Wildlife Department (TPWD) calls the 29th annual Great Texas Birding Classic (GBTC) the “biggest, longest, wildest birdwatching tournament in the U.S.!” The registration deadline is April 1, 2025, and the tournament spans from April 15 - May 15, 2025. HLBWS members have received an email via Groups.io with information about one opportunity to participate in the GTBC. Full details about the tournament, links to registration, rules, etc., can be found on the GTBC website.