Taken on 19/03/2019
Over 200,000 Cook's Swift reside at Tham Lod cave. I estimated 250,000 here in 1986 and the BBC have filmed here, citing over 300,000 'cave adapted Swifts'. The original movie clip here is 8 seconds long capturing the swift leaving the cave exit in the morning. This continues for hours.
Equipment
Nikon CoolPix P900
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