Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
1. | Mallard | 4 | 0 | 3 | 7 | 0 | 7 | 4 (15 Mar) | 11 | 2 | 15 Mar | 2 May | ||||
2. | Mountain Quail | 0 | 2 | 0 | 2 | 0 | 2 | 2 (11 Apr) | 6 | 1 | 11 Apr | 11 Apr | ||||
3. | Vaux's Swift | 0 | 668 | 4 | 672 | 0 | 672 | 482 (29 Apr) | 33 | 6 | 19 Apr | 2 May | ||||
4. | White-throated Swift | 0 | 93 | 1 | 94 | 0 | 94 | 26 (29 Apr) | 56 | 10 | 6 Apr | 2 May | ||||
5. | Black-chinned Hummingbird | 0 | 7 | 0 | 7 | 0 | 7 | 3 ( 5 Apr) | 28 | 5 | 5 Apr | 22 Apr | ||||
6. | Anna's Hummingbird | 2 | 14 | 0 | 16 | 0 | 16 | 3 (19 Apr) | 50 | 9 | 15 Mar | 29 Apr | ||||
7. | Costa's Hummingbird | 0 | 26 | 3 | 29 | 0 | 29 | 8 (29 Apr) | 44 | 8 | 19 Apr | 2 May | ||||
8. | Rufous Hummingbird | 1 | 48 | 0 | 49 | 0 | 49 | 7 (11 Apr) | 72 | 13 | 15 Mar | 29 Apr | ||||
9. | hummingbird sp | 10 | 200 | 1 | 211 | 0 | 211 | 30 (19 Apr) | 100 | 18 | 15 Mar | 2 May | ||||
10. | hummingbird (Selasphorus) sp. | 2 | 24 | 0 | 26 | 0 | 26 | 7 (29 Apr) | 39 | 7 | 15 Mar | 29 Apr | ||||
11. | Feral Pigeon | 0 | 1 | 0 | 1 | 0 | 1 | 1 (20 Apr) | 6 | 1 | 20 Apr | 20 Apr | ||||
12. | Band-tailed Pigeon | 9 | 134 | 3 | 146 | 0 | 146 | 24 (19 Apr) | 100 | 18 | 15 Mar | 2 May | ||||
13. | Mourning Dove | 2 | 4 | 0 | 6 | 0 | 6 | 2 (28 Mar) | 22 | 4 | 28 Mar | 22 Apr | ||||
14. | Great Northern Diver | 0 | 3 | 0 | 3 | 0 | 3 | 3 (21 Apr) | 6 | 1 | 21 Apr | 21 Apr | ||||
15. | Double-crested Cormorant | 0 | 40 | 0 | 40 | 0 | 40 | 34 (19 Apr) | 11 | 2 | 9 Apr | 19 Apr | ||||
16. | Great Blue Heron | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 6 | 1 | 2 May | 2 May | ||||
17. | Turkey Vulture | 1 | 26 | 0 | 27 | 0 | 27 | 17 (20 Apr) | 39 | 7 | 15 Mar | 29 Apr | ||||
18. | Osprey | 0 | 2 | 0 | 2 | 0 | 2 | 1 ( 4 Apr) | 11 | 2 | 4 Apr | 5 Apr | ||||
19. | Sharp-shinned Hawk | 0 | 1 | 0 | 1 | 0 | 1 | 1 (22 Apr) | 6 | 1 | 22 Apr | 22 Apr | ||||
20. | Cooper's Hawk | 0 | 3 | 0 | 3 | 0 | 3 | 2 (28 Apr) | 11 | 2 | 21 Apr | 28 Apr | ||||
21. | Accipiter sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 6 Apr) | 6 | 1 | 6 Apr | 6 Apr | ||||
22. | Swainson's Hawk | 0 | 4 | 0 | 4 | 0 | 4 | 2 ( 6 Apr) | 17 | 3 | 4 Apr | 29 Apr | ||||
23. | Belted Kingfisher | 0 | 3 | 0 | 3 | 0 | 3 | 2 (20 Apr) | 11 | 2 | 19 Apr | 20 Apr | ||||
24. | Acorn Woodpecker | 0 | 32 | 0 | 32 | 0 | 32 | 9 (21 Apr) | 44 | 8 | 6 Apr | 29 Apr | ||||
25. | Nuttall's Woodpecker | 0 | 2 | 0 | 2 | 0 | 2 | 1 (10 Apr) | 11 | 2 | 10 Apr | 29 Apr | ||||
26. | Northern Flicker | 0 | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 6 | 1 | 29 Apr | 29 Apr | ||||
27. | woodpecker sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 9 Apr) | 6 | 1 | 9 Apr | 9 Apr | ||||
28. | American Kestrel | 1 | 6 | 0 | 7 | 0 | 7 | 2 (29 Apr) | 33 | 6 | 15 Mar | 29 Apr | ||||
29. | Merlin | 1 | 1 | 0 | 2 | 0 | 2 | 1 (15 Mar) | 11 | 2 | 15 Mar | 28 Apr | ||||
30. | Peregrine | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 5 Apr) | 6 | 1 | 5 Apr | 5 Apr | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
31. | Olive-sided Flycatcher | 0 | 0 | 2 | 2 | 0 | 2 | 2 ( 2 May) | 6 | 1 | 2 May | 2 May | ||||
32. | Western Wood Pewee | 0 | 2 | 0 | 2 | 0 | 2 | 1 (20 Apr) | 11 | 2 | 20 Apr | 29 Apr | ||||
33. | Hammond's Flycatcher | 0 | 1 | 0 | 1 | 0 | 1 | 1 (22 Apr) | 6 | 1 | 22 Apr | 22 Apr | ||||
34. | Pacific-slope Flycatcher | 0 | 2 | 0 | 2 | 0 | 2 | 1 (22 Apr) | 11 | 2 | 22 Apr | 29 Apr | ||||
35. | Cassin's Kingbird | 0 | 3 | 0 | 3 | 0 | 3 | 2 (19 Apr) | 11 | 2 | 9 Apr | 19 Apr | ||||
36. | Western Kingbird | 0 | 324 | 32 | 356 | 0 | 356 | 216 ( 9 Apr) | 78 | 14 | 4 Apr | 2 May | ||||
37. | kingbird sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (28 Apr) | 6 | 1 | 28 Apr | 28 Apr | ||||
38. | Ash-throated Flycatcher | 0 | 11 | 0 | 11 | 0 | 11 | 3 (22 Apr) | 33 | 6 | 10 Apr | 30 Apr | ||||
39. | Warbling Vireo | 0 | 32 | 7 | 39 | 0 | 39 | 16 (30 Apr) | 33 | 6 | 7 Apr | 2 May | ||||
40. | Cassin's Vireo | 0 | 2 | 0 | 2 | 0 | 2 | 2 (22 Apr) | 6 | 1 | 22 Apr | 22 Apr | ||||
41. | California Scrub-Jay | 0 | 2 | 0 | 2 | 0 | 2 | 2 (10 Apr) | 6 | 1 | 10 Apr | 10 Apr | ||||
42. | American Crow | 74 | 11 | 0 | 85 | 0 | 85 | 65 (15 Mar) | 28 | 5 | 15 Mar | 9 Apr | ||||
43. | Cedar Waxwing | 1 | 0 | 0 | 1 | 0 | 1 | 1 (15 Mar) | 6 | 1 | 15 Mar | 15 Mar | ||||
44. | Phainopepla | 0 | 33 | 6 | 39 | 0 | 39 | 16 (29 Apr) | 50 | 9 | 5 Apr | 2 May | ||||
45. | Tree Swallow | 0 | 41 | 0 | 41 | 1 | 40 | 37 ( 5 Apr) | 17 | 3 | 5 Apr | 21 Apr | ||||
46. | Violet-green Swallow | 0 | 142 | 0 | 142 | 0 | 142 | 120 ( 5 Apr) | 22 | 4 | 4 Apr | 29 Apr | ||||
47. | Northern Rough-winged Swallow | 0 | 18 | 0 | 18 | 0 | 18 | 5 (29 Apr) | 39 | 7 | 9 Apr | 29 Apr | ||||
48. | Swallow | 0 | 36 | 0 | 36 | 0 | 36 | 14 (19 Apr) | 28 | 5 | 7 Apr | 29 Apr | ||||
49. | Cliff Swallow | 0 | 434 | 0 | 434 | 0 | 434 | 212 (29 Apr) | 50 | 9 | 5 Apr | 29 Apr | ||||
50. | swallow sp. | 46 | 133 | 0 | 179 | 0 | 179 | 57 ( 5 Apr) | 39 | 7 | 28 Mar | 29 Apr | ||||
51. | Blue-grey Gnatcatcher | 0 | 1 | 0 | 1 | 0 | 1 | 1 (28 Apr) | 6 | 1 | 28 Apr | 28 Apr | ||||
52. | Western Bluebird | 1 | 6 | 0 | 7 | 0 | 7 | 3 (29 Apr) | 22 | 4 | 26 Mar | 29 Apr | ||||
53. | Swainson's Thrush | 0 | 4 | 3 | 7 | 0 | 7 | 3 (30 Apr) | 17 | 3 | 29 Apr | 2 May | ||||
54. | American Robin | 0 | 3 | 0 | 3 | 0 | 3 | 2 ( 6 Apr) | 11 | 2 | 6 Apr | 20 Apr | ||||
55. | flycatcher sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (21 Apr) | 6 | 1 | 21 Apr | 21 Apr | ||||
56. | House Sparrow | 0 | 2 | 0 | 2 | 0 | 2 | 2 ( 9 Apr) | 6 | 1 | 9 Apr | 9 Apr | ||||
57. | finch sp. | 0 | 4 | 0 | 4 | 0 | 4 | 4 ( 9 Apr) | 6 | 1 | 9 Apr | 9 Apr | ||||
58. | Purple Finch | 0 | 4 | 0 | 4 | 0 | 4 | 2 (22 Apr) | 11 | 2 | 22 Apr | 29 Apr | ||||
59. | House Finch | 6 | 84 | 14 | 104 | 0 | 104 | 17 (11 Apr) | 56 | 10 | 15 Mar | 2 May | ||||
60. | Goldfinch | 0 | 16 | 0 | 16 | 0 | 16 | 9 ( 4 Apr) | 17 | 3 | 4 Apr | 11 Apr | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
61. | Lawrence's Goldfinch | 0 | 296 | 6 | 302 | 0 | 302 | 58 ( 9 Apr) | 83 | 15 | 4 Apr | 2 May | ||||
62. | American Goldfinch | 0 | 18 | 0 | 18 | 0 | 18 | 12 (19 Apr) | 17 | 3 | 7 Apr | 29 Apr | ||||
63. | Lesser Goldfinch | 2 | 251 | 10 | 263 | 0 | 263 | 26 (11 Apr) | 89 | 16 | 15 Mar | 2 May | ||||
64. | sparrow sp. | 0 | 11 | 0 | 11 | 0 | 11 | 4 (10 Apr) | 22 | 4 | 5 Apr | 19 Apr | ||||
65. | Lark Sparrow | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 7 Apr) | 6 | 1 | 7 Apr | 7 Apr | ||||
66. | Chipping Sparrow | 0 | 383 | 10 | 393 | 0 | 393 | 80 (22 Apr) | 78 | 14 | 4 Apr | 2 May | ||||
67. | Dark-eyed Junco | 0 | 2 | 0 | 2 | 0 | 2 | 1 ( 5 Apr) | 11 | 2 | 5 Apr | 6 Apr | ||||
68. | White-crowned Sparrow | 0 | 10 | 2 | 12 | 0 | 12 | 7 (29 Apr) | 22 | 4 | 22 Apr | 2 May | ||||
69. | Yellow-headed Blackbird | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 6 | 1 | 2 May | 2 May | ||||
70. | Bullock's Oriole | 0 | 38 | 9 | 47 | 0 | 47 | 9 (30 Apr) | 56 | 10 | 6 Apr | 2 May | ||||
71. | Hooded Oriole | 0 | 30 | 1 | 31 | 0 | 31 | 11 (22 Apr) | 61 | 11 | 7 Apr | 2 May | ||||
72. | Red-winged Blackbird | 0 | 11 | 0 | 11 | 0 | 11 | 4 ( 9 Apr) | 28 | 5 | 9 Apr | 29 Apr | ||||
73. | Brown-headed Cowbird | 0 | 0 | 3 | 3 | 0 | 3 | 3 ( 2 May) | 6 | 1 | 2 May | 2 May | ||||
74. | Brewer's Blackbird | 0 | 1 | 0 | 1 | 0 | 1 | 1 (19 Apr) | 6 | 1 | 19 Apr | 19 Apr | ||||
75. | blackbird sp. | 0 | 3 | 1 | 4 | 0 | 4 | 3 (21 Apr) | 11 | 2 | 21 Apr | 2 May | ||||
76. | Orange-crowned Warbler | 0 | 96 | 2 | 98 | 0 | 98 | 47 (29 Apr) | 78 | 14 | 4 Apr | 2 May | ||||
77. | Nashville Warbler | 0 | 136 | 11 | 147 | 0 | 147 | 61 (29 Apr) | 61 | 11 | 4 Apr | 2 May | ||||
78. | MacGillivray's Warbler | 0 | 3 | 1 | 4 | 0 | 4 | 1 (22 Apr) | 22 | 4 | 22 Apr | 2 May | ||||
79. | Common Yellowthroat | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 6 | 1 | 2 May | 2 May | ||||
80. | American Yellow Warbler | 0 | 25 | 88 | 113 | 0 | 113 | 88 ( 2 May) | 44 | 8 | 11 Apr | 2 May | ||||
81. | Yellow-rumped Warbler (Audubon's) | 3 | 1671 | 10 | 1684 | 0 | 1684 | 393 ( 7 Apr) | 94 | 17 | 15 Mar | 2 May | ||||
82. | Black-throated Grey Warbler | 0 | 120 | 8 | 128 | 0 | 128 | 55 (29 Apr) | 83 | 15 | 4 Apr | 2 May | ||||
83. | Townsend's Warbler | 0 | 71 | 9 | 80 | 0 | 80 | 62 (29 Apr) | 33 | 6 | 6 Apr | 2 May | ||||
84. | Hermit Warbler | 0 | 141 | 6 | 147 | 0 | 147 | 72 (29 Apr) | 50 | 9 | 11 Apr | 2 May | ||||
85. | Wilson's Warbler | 0 | 34 | 5 | 39 | 0 | 39 | 16 (29 Apr) | 33 | 6 | 21 Apr | 2 May | ||||
86. | Western Tanager | 0 | 286 | 120 | 406 | 0 | 406 | 120 ( 2 May) | 50 | 9 | 7 Apr | 2 May | ||||
87. | Black-headed Grosbeak | 0 | 138 | 36 | 174 | 0 | 174 | 61 (29 Apr) | 50 | 9 | 11 Apr | 2 May | ||||
88. | Blue Grosbeak | 0 | 1 | 2 | 3 | 0 | 3 | 2 ( 2 May) | 11 | 2 | 29 Apr | 2 May | ||||
89. | Lazuli Bunting | 0 | 2781 | 129 | 2910 | 0 | 2910 | 1141 (29 Apr) | 78 | 14 | 5 Apr | 2 May | ||||
90. | passerine sp. | 9 | 1024 | 53 | 1086 | 0 | 1086 | 365 (29 Apr) | 89 | 16 | 15 Mar | 2 May | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
91. | warbler sp. | 0 | 357 | 19 | 376 | 0 | 376 | 127 (29 Apr) | 72 | 13 | 4 Apr | 2 May | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
Totals | 175 | 10640 | 623 | 11438 | 1 | 11437 | 100 | 18 | ||||||||
Observation hours | 5:10 | 40:59 | 1:46 | 47:55 |
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