A hidden, motion-activated camera near one of the bait sites takes still photos of all of the free-flying condors at Pinnacles National Park as they feed or balance on a scale, which has been disguised as a comfortable perch. The CondorCam allows biologists to track the weight of the birds, which gives an indication of physical health.
Biologists can check the status of the transmitters located on the condor's wings and look for any obvious health issues. Still camera photos also allow the biologists to observe which condors regularly spend time together and has helped biologists identify breeding pairs. Some other activities the hidden camera captures are condors preening their feathers, fighting with other condors for the opportunity to stay on the scale, and other species investigating the bait site.