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Yi Luo: Northern Cardinal
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Yi Luo: Northern Cardinal
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Yi Luo: Northern Cardinal
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Yi Luo: Northern Cardinal
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Yi Luo: Northern Cardinal
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Yi Luo: Song Sparrow
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Yi Luo: American Goldfinch
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Yi Luo: Song Sparrow
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Yi Luo: Indigo Bunting
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Yi Luo: White-crowned Sparrow
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Yi Luo: House Finch
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Yi Luo: American Tree Sparrow
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Yi Luo: Dark-eyed Junco
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Yi Luo: Dark-eyed Junco
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Yi Luo: Dark-eyed Junco
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Yi Luo: Song Sparrow
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Yi Luo: Song Sparrow
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Yi Luo: American Tree Sparrow
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Yi Luo: Pine Siskin
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Yi Luo: House Finch
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Yi Luo: American Goldfinch
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Yi Luo: Grasshopper Sparrow
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Yi Luo: Grasshopper Sparrow
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Yi Luo: Northern Cardinal
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Yi Luo: White-throated Sparrow
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Yi Luo: Lincoln's Sparrow
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Yi Luo: Lincoln's Sparrow
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Yi Luo: White-crowned Sparrow
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Yi Luo: Song Sparrow
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Yi Luo: Field Sparrow