There's a number of ones on the periphery, one for example is Airware http://www.airware.com/ which is working on autopilot for drones, which you may say what does that have to do with wildlife/habitat conservation? Well they are partnered with Ol Pejeta Wildlife Conservancy in Kenya which is deploying a drone to monitor/deter poachers of rhinos.
That's a great use of drones. Poaching poachers. :)