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Not that it makes any difference but -One other misconception here that I've heard repeated over and over again is about transmitters costing $3000. Transmitters cost $100 to $250 each. A few receivers may cost nearly $3000. But birds only wear transmitters.
"The most important tools at our disposal are new, cutting-edge GPS-GSM transmitters, which allow us to track the movements of these owls on an almost minute-to-minute basis, and in three dimensions (latitude, longitude and altitude). This allows us see where these owls are traveling, what habitats they're using, where they're hunting at night and what threats they may be facing.
The transmitters are solar-powered and last for years, and they weigh just 40 grams, only 1.5-3 percent of the owl's weight. They take regular location fixes using the GPS satellite system, accurate to a fraction of a meter, and once a day they basically phone home, dialing through the cell phone network to transmit their data.
Unfortunately, they're expensive. The manufacturer, Cellular Tracking Technologies, is one of our partners, and is giving us a big discount on the units, but with data charges it still costs about $3,000 per transmitter."