Many thanks to SWLing Post contributor, Paul Jamet, who writes:

Hello Thomas,

I think you’re familiar with this program and its website:

WWFF – World Wide Flora & Fauna : https://wwff.co/ 

I was informed by the head of the French branch that this program is not limited to amateur radio operators. SWLs (shortwave listeners) can also participate and receive awards.

Rules : https://wwff.co/wwff_cont/uploads/2025/09/WWFF-Global-Rules-V_5.10.pdf

Best of luck.

Paul JAMET

I did not realize this although I do participate in WWFF as an on-the-air activity. Thanks for the tip!