Every evening, just after the sun went down, the red eye tree frogs in Tortuguero National Park, Costa Rica came down from their daytime resting spots high in the trees. The males croak to establish territory and to attract mates. I often will go out spotlighting alone, and finding the frogs in this particular location wasn’t difficult. The hard part was aiming the headlamp on the top of my head at the frog while at the same time looking through the viewfinder. Luckily, tree frogs tend to be patient subjects.

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