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Whether it swims, crawls, runs or flies, it's not easy to estimate the population of a wildlife species. That challenge is even greater when the animal lives in some of the most remote regions of the ...

Add Yahoo as a preferred source to see more of our stories on Google. A snowy owl rests on a pier near Montrose Point Bird Sanctuary late last month in Chicago. More young snowy owls have been ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Snowy owls are arriving earlier than usual this winter, marking what ...