From the signs there are three animals in the area. A telemetry was attached to the traps using nylon string. The transmitters act as alarm once the traps are closed. The races of the traps were hidden using mud and leaves from the surrounding. We took turn to monitor the traps via the transmitter receiver.
Nothing happens during the night.
But to our surprise we found two hairy-noed otter caught in the traps the next day around 1100 hrs. As we approached the traps we heard the otter call. Approximately 50 meters from the traps we saw all three otters at the toilet site. Close observation showed that only two were caught in the traps while the other one was trying to free the two caught. Seeing this we knew that we had to act fast as the day was geting hot.