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| First Page | Document Content | |
|---|---|---|
 Date: 2012-12-21 12:19:54American sparrows White-crowned Sparrow Chipping Sparrow Bird vocalization Chaffinch Rufous-collared Sparrow Swamp Sparrow Passerida Zonotrichia Spizella |
| First Page | Document Content | |
|---|---|---|
Date: 2012-12-21 12:19:54American sparrows White-crowned Sparrow Chipping Sparrow Bird vocalization Chaffinch Rufous-collared Sparrow Swamp Sparrow Passerida Zonotrichia Spizella |
