We arrived at Wat Khao Chong Phran unannounced and surprisingly the head monk agreed to see us immediately on the same porch where we met him with Daniel Hargreaves in 2012 (See Sept. 20 blog Guano happens). Merlin even wore the same shirt, his favorite field shirt! Pongsanant, our BatThai guide and interpreter then and now, told us the monk was quite happy to see us again. We had a short visit and were granted permission to go up to the cave entrance to photograph the emergence. We made an appointment to see him the following morning to discuss our findings.
The wrinkle-lipped bat (Chaerephon plicatus) colony had been slowly declining in recent years, despite protection, so Merlin was concerned to discover why. After climbing to the cave we noticed that trees and vines had gradually grown up around the entrance, disrupting the bats’ emergence, as thousands collided with obstacles. We saw clear problems that in other free-tailed bat caves have caused abandonment and reported this the next morning. Merlin was happy to provide an on-site explanation and delighted when the tree trimming was promptly ordered. The cave managers are now aware that this should be repeated every couple of years in the future as a routine part of protection.
Given Merlin’s involvement in gaining the first protection for these bats 34 years ago, he’s especially interested in ensuring their continued safety.