2024年4月8日、北アメリカで皆既日食がありました。
On April 8, 2024, a total solar eclipse occurred in North America.
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At this time, the sun was hidden by the moon, and even though it was daytime, it became very dark for several minutes.
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According to research, the internal clocks of some birds were temporarily reset due to this darkness.
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After the eclipse ended, 29 species of birds began to sing as if a new morning had arrived.
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This phenomenon has been observed and reported by many citizen scientists.
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The research team used a smartphone app called Solar Bird to record bird behavior.
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They also use recording equipment to collect birdsongs.
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During the solar eclipse, as the sky darkened, eleven types of birds sang more than usual.
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Some species of birds become quiet when it gets dark, but when the eclipse ends and it becomes bright again, 19 species of birds start singing as if it were a morning chorus.
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For example, owls and robins in America were singing more than usual.
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According to researchers, changes in light have a very significant impact on birds behavior.
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Not all birds react in the same way, but a special darkness like a total solar eclipse seems to signal the start of a new day for many birds.
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