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Cornell Lab of Ornithology: Dan Lebbin in Peru
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Cornell Lab of Ornithology: Jerry with Big Bats
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Cornell Lab of Ornithology: Dani Cholewiak with popups
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Cornell Lab of Ornithology: Dan Lebbin in Peru_gray
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Cornell Lab of Ornithology: SFO Students with Telescopes
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Cornell Lab of Ornithology: Irby with Student