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Ornithologists say that community science bird data shows different trends in bird populations than professional bird surveys do, especially in developing countries. Researchers look for trends to know whether the number of individuals in a species is increasing, stable or decreasing -- with the latter as a warning sign that the species is in trouble. […]
With the help of citizen scientists, researchers have tracked how one rare sparrow song went ''viral'' across Canada, traveling over 3,000 kilometers between 2000 and 2019 and wiping out a historic song ending. The study reports that white-throated sparrows from British Columbia to Ontario have ditched their traditional three-note-ending song in favor of a unique […]
