BSOL Totals for 2000
| Species | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Sharp-shinned Hawk | 7 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||
| Red-shouldered Hawk | 1 | 1 | |||||||||||
| California Quail | 43 | 1 | 7 | 2 | 2 | 16 | 9 | 6 | |||||
| Mourning Dove | 2 | 2 | |||||||||||
| Northern Saw-whet Owl | 1 | 1 | |||||||||||
| Vaux's Swift | 1 | 1 | |||||||||||
| Anna's Hummingbird | 71 | 2 | 6 | 6 | 16 | 15 | 7 | 3 | 6 | 4 | 1 | 5 | |
| Rufous Hummingbird | 9 | 5 | 3 | 1 | |||||||||
| Allen's Hummingbird | 64 | 1 | 5 | 9 | 12 | 34 | 2 | 1 | |||||
| Belted Kingfisher | 5 | 1 | 4 | ||||||||||
| Acorn Woodpecker | 1 | 1 | |||||||||||
| Red-breasted Sapsucker | 2 | 1 | 1 | ||||||||||
| Nuttall's Woodpecker | 18 | 2 | 1 | 1 | 11 | 1 | 2 | ||||||
| Downy Woodpecker | 57 | 1 | 3 | 10 | 15 | 20 | 4 | 1 | 2 | 1 | |||
| Species | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Hairy Woodpecker | 14 | 5 | 5 | 3 | 1 | ||||||||
| Red-shafted Flicker | 3 | 1 | 1 | 1 | |||||||||
| Olive-sided Flycatcher | 9 | 4 | 5 | ||||||||||
| Western Wood-Pewee | 7 | 5 | 2 | ||||||||||
| Willow Flycatcher | 16 | 6 | 3 | 7 | |||||||||
| Hammond's Flycatcher | 5 | 5 | |||||||||||
| "Western" Flycatcher | 253 | 3 | 9 | 21 | 8 | 11 | 44 | 139 | 18 | ||||
| Black Phoebe | 56 | 6 | 7 | 4 | 11 | 14 | 3 | 5 | 4 | 1 | 1 | ||
| Eastern Phoebe | 1 | 1 | |||||||||||
| Ash-throated Flycatcher | 9 | 4 | 1 | 4 | |||||||||
| Tree Swallow | 14 | 3 | 9 | 2 | |||||||||
| Violet-green Swallow | 29 | 4 | 1 | 10 | 4 | 10 | |||||||
| Cliff Swallow | 1 | 1 | |||||||||||
| Northern Rough-winged Swallow | 1 | 1 | |||||||||||
| Steller's Jay | 12 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 1 | ||||
| Western Scrub-Jay | 12 | 2 | 2 | 5 | 1 | 1 | 1 | ||||||
| Chestnut-backed Chickadee | 397 | 2 | 4 | 11 | 9 | 139 | 107 | 40 | 31 | 26 | 11 | 12 | 5 |
| Bushtit | 119 | 8 | 2 | 13 | 6 | 14 | 15 | 10 | 8 | 20 | 9 | 9 | 5 |
| Brown Creeper | 6 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||
| Bewick's Wren | 126 | 3 | 1 | 8 | 2 | 4 | 7 | 14 | 21 | 28 | 16 | 13 | 9 |
| House Wren | 85 | 6 | 17 | 31 | 20 | 3 | 3 | 4 | 1 | ||||
| Winter Wren | 44 | 2 | 1 | 9 | 19 | 5 | 6 | 2 | |||||
| Marsh Wren | 1 | 1 | |||||||||||
| Ruby-crowned Kinglet | 239 | 17 | 29 | 19 | 1 | 2 | 60 | 85 | 26 | ||||
| Blue-gray Gnatcatcher | 1 | 1 | |||||||||||
| Species | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Western Bluebird | 9 | 5 | 1 | 3 | |||||||||
| Swainson's Thrush | 211 | 12 | 120 | 16 | 20 | 9 | 29 | 4 | 1 | ||||
| Varied Thrush | 1 | 1 | |||||||||||
| Hermit Thrush | 283 | 28 | 8 | 42 | 20 | 1 | 4 | 96 | 49 | 35 | |||
| American Robin | 3 | 1 | 1 | 1 | |||||||||
| Wrentit | 166 | 4 | 11 | 14 | 15 | 33 | 36 | 31 | 5 | 4 | 7 | 6 | |
| California Thrasher | 8 | 1 | 3 | 1 | 1 | 2 | |||||||
| Cedar Waxwing | 3 | 1 | 2 | ||||||||||
| European Starling | 1 | 1 | |||||||||||
| White-eyed Vireo | 1 | 1 | |||||||||||
| Cassin's Vireo | 3 | 1 | 2 | ||||||||||
| Hutton's Vireo | 96 | 5 | 4 | 3 | 3 | 5 | 10 | 19 | 11 | 10 | 15 | 11 | |
| Warbling Vireo | 255 | 1 | 19 | 87 | 1 | 33 | 60 | 45 | 9 | ||||
| Orange-crowned Warbler | 222 | 20 | 96 | 81 | 15 | 1 | 4 | 4 | 1 | ||||
| Nashville Warbler | 6 | 2 | 3 | 1 | |||||||||
| Northern Parula | 6 | 2 | 3 | 1 | |||||||||
| Yellow Warbler | 200 | 39 | 3 | 1 | 33 | 118 | 6 | ||||||
| Magnolia Warbler | 3 | 3 | |||||||||||
| Black-throated Blue Warbler | 1 | 1 | |||||||||||
| Myrtle Warbler | 554 | 15 | 7 | 47 | 34 | 138 | 209 | 104 | |||||
| Audubon's Warbler | 98 | 1 | 31 | 60 | 2 | 2 | 2 | ||||||
| Yellow-rumped Warbler | 1 | 1 | |||||||||||
| Black-throated Gray Warbler | 1 | 1 | |||||||||||
| Townsend's Warbler | 30 | 1 | 2 | 2 | 3 | 13 | 4 | 5 | |||||
| Blackpoll Warbler | 1 | 1 | |||||||||||
| American Redstart | 2 | 2 | |||||||||||
| Species | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Northern Waterthrush | 1 | 1 | |||||||||||
| Ovenbird | 5 | 5 | |||||||||||
| Mourning Warbler | 1 | 1 | |||||||||||
| MacGillivray's Warbler | 15 | 3 | 4 | 4 | 4 | ||||||||
| Canada Warbler | 1 | 1 | |||||||||||
| Common Yellowthroat | 47 | 4 | 21 | 6 | 1 | 13 | 2 | ||||||
| Hooded Warbler | 1 | 1 | |||||||||||
| Wilson's Warbler | 768 | 18 | 130 | 231 | 99 | 164 | 95 | 29 | 2 | ||||
| Yellow-breasted Chat | 24 | 9 | 15 | ||||||||||
| Summer Tanager | 1 | 1 | |||||||||||
| Western Tanager | 6 | 2 | 3 | 1 | |||||||||
| Rose-breasted Grosbeak | 3 | 2 | 1 | ||||||||||
| Black-headed Grosbeak | 137 | 7 | 42 | 13 | 51 | 18 | 5 | 1 | |||||
| Lazuli Bunting | 18 | 4 | 10 | 1 | 1 | 1 | 1 | ||||||
| Painted Bunting | 4 | 1 | 3 | ||||||||||
| Green-tailed Towhee | 1 | 1 | |||||||||||
| Spotted Towhee | 114 | 4 | 2 | 10 | 15 | 8 | 19 | 17 | 16 | 11 | 6 | 5 | 1 |
| California Towhee | 36 | 2 | 7 | 3 | 2 | 3 | 11 | 4 | 4 | ||||
| Fox Sparrow | 51 | 5 | 1 | 16 | 12 | 1 | 1 | 2 | 9 | 1 | 3 | ||
| Song Sparrow | 550 | 4 | 1 | 4 | 26 | 53 | 113 | 142 | 98 | 51 | 36 | 15 | 7 |
| Lincoln's Sparrow | 100 | 12 | 62 | 5 | 10 | 8 | 3 | ||||||
| Swamp Sparrow | 2 | 2 | |||||||||||
| White-throated Sparrow | 1 | 1 | |||||||||||
| Golden-crowned Sparrow | 182 | 13 | 7 | 22 | 29 | 3 | 1 | 52 | 35 | 20 | |||
| Species | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Gambel's White-cr. Sparrow | 20 | 3 | 15 | 1 | 1 | ||||||||
| Puget Sound White-cr. Sparrow | 72 | 2 | 7 | 19 | 10 | 15 | 18 | 1 | |||||
| Nuttall's White-cr. Sparrow | 1 | 1 | |||||||||||
| White-crowned Sparrow | 6 | 1 | 3 | 2 | |||||||||
| Dark-eyed Junco | 28 | 1 | 1 | 1 | 6 | 3 | 4 | 7 | 4 | 1 | |||
| Brown-headed Cowbird | 1 | 1 | |||||||||||
| Purple Finch | 293 | 36 | 2 | 20 | 24 | 40 | 58 | 71 | 12 | 4 | 14 | 12 | |
| House Finch | 33 | 7 | 17 | 4 | 5 | ||||||||
| Pine Siskin | 29 | 1 | 4 | 2 | 19 | 3 | |||||||
| Lesser Goldfinch | 31 | 2 | 2 | 4 | 9 | 12 | 1 | 1 | |||||
| American Goldfinch | 15 | 1 | 1 | 1 | 2 | 9 | 1 | ||||||
| House Sparrow | 1 | 1 | |||||||||||
| Totals | 6506 | 148 | 79 | 368 | 719 | 1081 | 700 | 788 | 568 | 656 | 584 | 548 | 267 |
| Number of Species | 100 | 16 | 21 | 41 | 43 | 57 | 50 | 44 | 36 | 49 | 47 | 35 | 24 |
| Days of Operation | 301 | 17 | 16 | 26 | 28 | 28 | 30 | 31 | 31 | 29 | 31 | 25 | 9 |
| Species | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |