Birdwatchers across the globe will take part in the 20th annual Great Backyard Bird Count this weekend. The citizen science project helps biologists at the Cornell Lab of Ornithology create an annual snapshot of the distribution and abundance of birds. Last year, more than 18 million birds were counted, which was the largest count of global bird populations ever recorded.Larry Master, an avid birder in Keene, says it’s been an exciting winter for bird watchers in the North Country - a Ross’s Gull had birders flocking to Tupper Lake last month, and to Massena to see Great Gray Owls this week.Master says the gull sighting was a first for many birders because it's rarely seen in the continental U.S. He says they usually spend winter along the pack ice in the Arctic Ocean. This winter there were two sightings: one in California and another in Tupper Lake. Master says the Adirondacks sighting was first reported by a homeowner during renovation work. [full story]