Spotting primates w/ thermal scope

Hi thermal experts!
We're thinking here in FFI of getting a thermal scope to help us more accurately count gibbon group size (a key vulnerability in our population estimates).

Any advice or experiences to share using thermal in primate surveys? Any models to recommend, or specs to look for?

I’m specifically wondering if we might be able to spot gibbons looking down on the canopy from atop limestone pinnacles - they are typically 100-300 m from us when we spot them. You can see what that looks like here: https://twitter.com/olliewearn/status/1200451721492750343?s=20

thanks

ollie

cc @montanamud  !

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