Motion detector camera designed to capture images of Cougars in the Park Kansas instead recorded a picture of the pranksters, dressed as animals, monsters and Santa Claus.
Police said they found images on two cameras in the Park in Gardner on Monday.
Interspersed among the images of skunks and coyotes were pictures of people dressed in animal costumes, lions, gorillas, various monsters and Santa Claus.
Corporal Robert Huff said it was "pretty funny" and "creative". Jokers remained unknown.
The cameras were installed this month to investigate reports of mountain lions. The lions were never discovered. But on the record there were "other animals". What made people behave this way is unknown.
Gardner is about 30 miles southwest from downtown Kansas city, Missouri.
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