Currently there are some restrictions to enter certain protected sites in Thailand due to ongoing covid-19 situation. Most parks are open with very few still having some restrictions. The restrictions varies from park to park. Follow this link for an up to date situation report.
Species of Thailand
Binomial name: Phylloscopus chloronotus, John Edward Gray & George Robert Gray, 1847
The lemon-rumped warbler or pale-rumped warbler (Phylloscopus chloronotus) is a species of Old World warbler in the family Phylloscopidae. It is found from the western Himalayas to central China.