Pama strain of gamecock may have been originated by the Burmese Kings and Princes. Burma is a neighbor of Thailand.
When King Naresuan was just a Prince of Thailand, Prince Naresuan was captured by the Burmese Prince. He may have gain freedom or avert war when Prince Naresuan and the Burmese Prince agreed to have a cockfight instead of war.
Prince Naresuan fighting with his Leung Hang Khao strain of gamecocks.
The Burmese Prince fighting with his Pama strain of gamecocks.
Pama is another word for Burmese. Burma is now named Myanmar.
Thai strains of gamecocks of today are mixed with Pama or Burmese strain of gamecocks to improve its fighting style.