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RCB40: Song Sparrow, Arapahoe County, Colorado
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RCB40: Song Sparrow, Arapahoe County, Colorado
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RCB40: Song Sparrow, Jefferson County, Colorado
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RCB40: Song Sparrow (Jefferson County, Colorado - June 2020)
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RCB40: Song Sparrow (Jefferson County, Colorado - June 2020)
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RCB40: Lincoln's Sparrow (Boulder County, Colorado - July 2020)
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RCB40: White-crowned Sparrow (Boulder County, Colorado - July 2020)
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RCB40: White-crowned Sparrow,immature (Boulder County, Colorado - October 2020)
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RCB40: Field Sparrow (Jefferson County, Colorado - November 2020)
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RCB40: Vesper Sparrow (Jefferson County, Colorado - April 2021)
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RCB40: Lincoln's Sparrow (Jefferson County, Colorado)
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RCB40: Black-throated Sparrow (Mesa County, Colorado - May 2021)
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RCB40: Brewer's Sparrow (Mesa County, Colorado - May 2021)
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RCB40: Brewer's Sparrow (Mesa County, Colorado - May 2021)
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RCB40: Vesper Sparrow (Boulder County, Colorado - May 2021)
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RCB40: Song Sparrow (Jefferson County, Colorado - February 2022)
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RCB40: Song Sparrow (Jefferson County, Colorado - February 2023)
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RCB40: Song Sparrow (Arapahoe County, Colorado - October 2023)
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RCB40: Song Sparrow (Arapahoe County, Colorado - October 2023)
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RCB40: Song Sparrow (Arapahoe County, Colorado - October 2023)
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RCB40: Sagebrush Sparrow (Jefferson County, Colorado - March 2024)
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RCB40: Brewer's Sparrow (Jefferson County, colorado - April 2024)