Why Are You Seeing Robins in Winter? - Cool Green Science
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Spring has certainly not arrived, so why have the robins? Share your observations with Journey North.
Are robins really a sign of spring? - Gulo in Nature
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Why Are You Seeing Robins in Winter? - Cool Green Science
American Robin Overview, All About Birds, Cornell Lab of Ornithology
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Robins: A sign of spring? Or did winter never come? - WTOP News
