Two ecologists in Switzerland have designed and built a flying drone which they believe could be used to monitor illegal logging in remote and hard-to-reach regions. It was initially intended to video and photograph orangutans from the air in order to monitor their populations. However, on its debut flight over Sumatra it recorded evidence of rainforest logging. Flight launches are planned in Malaysia and Borneo in the coming months and the researchers will make public the instructions for assembling similar crafts.