AUSTIN – The 19th annual Great Texas Birding Classic is kicking off this Wednesday, April 15, with a bang! With 100 teams and more than 550 participants registered to participate from April 15 to May 15, this year’s event has 40% more people going out birding throughout the state than last year. Eleven state parks are joining the fun by hosting Big Sit!s in their park, and they are inviting the public to come join them.