Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
1. | Mallard | 4 | 0 | 3 | 7 | 0 | 7 | 4 (15 Mar) | 9 | 2 | 15 Mar | 2 May | ||||
2. | Mountain Quail | 0 | 2 | 0 | 2 | 0 | 2 | 2 (11 Apr) | 5 | 1 | 11 Apr | 11 Apr | ||||
3. | Vaux's Swift | 0 | 668 | 248 | 916 | 0 | 916 | 482 (29 Apr) | 36 | 8 | 19 Apr | 8 May | ||||
4. | White-throated Swift | 0 | 93 | 10 | 103 | 0 | 103 | 26 (29 Apr) | 59 | 13 | 6 Apr | 10 May | ||||
5. | Black-chinned Hummingbird | 0 | 7 | 0 | 7 | 0 | 7 | 3 ( 5 Apr) | 23 | 5 | 5 Apr | 22 Apr | ||||
6. | Anna's Hummingbird | 2 | 14 | 1 | 17 | 0 | 17 | 3 (19 Apr) | 45 | 10 | 15 Mar | 8 May | ||||
7. | Costa's Hummingbird | 0 | 26 | 16 | 42 | 0 | 42 | 8 (29 Apr) | 55 | 12 | 19 Apr | 10 May | ||||
8. | Rufous Hummingbird | 1 | 48 | 0 | 49 | 0 | 49 | 7 (11 Apr) | 59 | 13 | 15 Mar | 29 Apr | ||||
9. | hummingbird sp | 10 | 200 | 42 | 252 | 0 | 252 | 30 (19 Apr) | 100 | 22 | 15 Mar | 10 May | ||||
10. | hummingbird (Selasphorus) sp. | 2 | 24 | 10 | 36 | 0 | 36 | 7 (29 Apr) | 41 | 9 | 15 Mar | 10 May | ||||
11. | Feral Pigeon | 0 | 1 | 17 | 18 | 0 | 18 | 17 ( 7 May) | 9 | 2 | 20 Apr | 7 May | ||||
12. | Band-tailed Pigeon | 9 | 134 | 50 | 193 | 0 | 193 | 24 (19 Apr) | 100 | 22 | 15 Mar | 10 May | ||||
13. | Mourning Dove | 2 | 4 | 23 | 29 | 0 | 29 | 15 ( 7 May) | 36 | 8 | 28 Mar | 10 May | ||||
14. | Great Northern Diver | 0 | 3 | 0 | 3 | 0 | 3 | 3 (21 Apr) | 5 | 1 | 21 Apr | 21 Apr | ||||
15. | Double-crested Cormorant | 0 | 40 | 0 | 40 | 0 | 40 | 34 (19 Apr) | 9 | 2 | 9 Apr | 19 Apr | ||||
16. | Great Blue Heron | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 5 | 1 | 2 May | 2 May | ||||
17. | Turkey Vulture | 1 | 26 | 7 | 34 | 0 | 34 | 17 (20 Apr) | 41 | 9 | 15 Mar | 8 May | ||||
18. | Osprey | 0 | 2 | 0 | 2 | 0 | 2 | 1 ( 4 Apr) | 9 | 2 | 4 Apr | 5 Apr | ||||
19. | Sharp-shinned Hawk | 0 | 1 | 0 | 1 | 0 | 1 | 1 (22 Apr) | 5 | 1 | 22 Apr | 22 Apr | ||||
20. | Cooper's Hawk | 0 | 3 | 0 | 3 | 0 | 3 | 2 (28 Apr) | 9 | 2 | 21 Apr | 28 Apr | ||||
21. | Accipiter sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 6 Apr) | 5 | 1 | 6 Apr | 6 Apr | ||||
22. | Swainson's Hawk | 0 | 4 | 1 | 5 | 0 | 5 | 2 ( 6 Apr) | 18 | 4 | 4 Apr | 8 May | ||||
23. | Belted Kingfisher | 0 | 3 | 0 | 3 | 0 | 3 | 2 (20 Apr) | 9 | 2 | 19 Apr | 20 Apr | ||||
24. | Acorn Woodpecker | 0 | 32 | 3 | 35 | 0 | 35 | 9 (21 Apr) | 45 | 10 | 6 Apr | 10 May | ||||
25. | Nuttall's Woodpecker | 0 | 2 | 0 | 2 | 0 | 2 | 1 (10 Apr) | 9 | 2 | 10 Apr | 29 Apr | ||||
26. | Northern Flicker | 0 | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 5 | 1 | 29 Apr | 29 Apr | ||||
27. | woodpecker sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 9 Apr) | 5 | 1 | 9 Apr | 9 Apr | ||||
28. | American Kestrel | 1 | 6 | 0 | 7 | 0 | 7 | 2 (29 Apr) | 27 | 6 | 15 Mar | 29 Apr | ||||
29. | Merlin | 1 | 1 | 0 | 2 | 0 | 2 | 1 (15 Mar) | 9 | 2 | 15 Mar | 28 Apr | ||||
30. | Peregrine | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 5 Apr) | 5 | 1 | 5 Apr | 5 Apr | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
31. | Olive-sided Flycatcher | 0 | 0 | 4 | 4 | 0 | 4 | 2 ( 2 May) | 9 | 2 | 2 May | 8 May | ||||
32. | Western Wood Pewee | 0 | 2 | 12 | 14 | 0 | 14 | 7 ( 8 May) | 27 | 6 | 20 Apr | 10 May | ||||
33. | Hammond's Flycatcher | 0 | 1 | 0 | 1 | 0 | 1 | 1 (22 Apr) | 5 | 1 | 22 Apr | 22 Apr | ||||
34. | Pacific-slope Flycatcher | 0 | 2 | 0 | 2 | 0 | 2 | 1 (22 Apr) | 9 | 2 | 22 Apr | 29 Apr | ||||
35. | Empidonax sp. | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 7 May) | 5 | 1 | 7 May | 7 May | ||||
36. | Cassin's Kingbird | 0 | 3 | 0 | 3 | 0 | 3 | 2 (19 Apr) | 9 | 2 | 9 Apr | 19 Apr | ||||
37. | Western Kingbird | 0 | 324 | 74 | 398 | 0 | 398 | 216 ( 9 Apr) | 82 | 18 | 4 Apr | 10 May | ||||
38. | kingbird sp. | 0 | 1 | 1 | 2 | 0 | 2 | 1 (28 Apr) | 9 | 2 | 28 Apr | 7 May | ||||
39. | Ash-throated Flycatcher | 0 | 11 | 7 | 18 | 0 | 18 | 5 ( 8 May) | 41 | 9 | 10 Apr | 10 May | ||||
40. | Warbling Vireo | 0 | 32 | 163 | 195 | 0 | 195 | 51 ( 9 May) | 45 | 10 | 7 Apr | 10 May | ||||
41. | Cassin's Vireo | 0 | 2 | 0 | 2 | 0 | 2 | 2 (22 Apr) | 5 | 1 | 22 Apr | 22 Apr | ||||
42. | California Scrub-Jay | 0 | 2 | 0 | 2 | 0 | 2 | 2 (10 Apr) | 5 | 1 | 10 Apr | 10 Apr | ||||
43. | American Crow | 74 | 11 | 0 | 85 | 0 | 85 | 65 (15 Mar) | 23 | 5 | 15 Mar | 9 Apr | ||||
44. | Cedar Waxwing | 1 | 0 | 29 | 30 | 0 | 30 | 12 ( 8 May) | 23 | 5 | 15 Mar | 10 May | ||||
45. | Phainopepla | 0 | 33 | 59 | 92 | 0 | 92 | 19 (10 May) | 59 | 13 | 5 Apr | 10 May | ||||
46. | Tree Swallow | 0 | 41 | 0 | 41 | 1 | 40 | 37 ( 5 Apr) | 14 | 3 | 5 Apr | 21 Apr | ||||
47. | Violet-green Swallow | 0 | 142 | 2 | 144 | 0 | 144 | 120 ( 5 Apr) | 27 | 6 | 4 Apr | 8 May | ||||
48. | Northern Rough-winged Swallow | 0 | 18 | 1 | 19 | 0 | 19 | 5 (29 Apr) | 36 | 8 | 9 Apr | 7 May | ||||
49. | Swallow | 0 | 36 | 2 | 38 | 0 | 38 | 14 (19 Apr) | 32 | 7 | 7 Apr | 8 May | ||||
50. | Cliff Swallow | 0 | 434 | 5 | 439 | 0 | 439 | 212 (29 Apr) | 50 | 11 | 5 Apr | 8 May | ||||
51. | swallow sp. | 46 | 133 | 2 | 181 | 0 | 181 | 57 ( 5 Apr) | 41 | 9 | 28 Mar | 8 May | ||||
52. | Blue-grey Gnatcatcher | 0 | 1 | 0 | 1 | 0 | 1 | 1 (28 Apr) | 5 | 1 | 28 Apr | 28 Apr | ||||
53. | Western Bluebird | 1 | 6 | 0 | 7 | 0 | 7 | 3 (29 Apr) | 18 | 4 | 26 Mar | 29 Apr | ||||
54. | Swainson's Thrush | 0 | 4 | 43 | 47 | 0 | 47 | 27 ( 8 May) | 27 | 6 | 29 Apr | 9 May | ||||
55. | American Robin | 0 | 3 | 0 | 3 | 0 | 3 | 2 ( 6 Apr) | 9 | 2 | 6 Apr | 20 Apr | ||||
56. | flycatcher sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (21 Apr) | 5 | 1 | 21 Apr | 21 Apr | ||||
57. | House Sparrow | 0 | 2 | 0 | 2 | 0 | 2 | 2 ( 9 Apr) | 5 | 1 | 9 Apr | 9 Apr | ||||
58. | finch sp. | 0 | 4 | 0 | 4 | 0 | 4 | 4 ( 9 Apr) | 5 | 1 | 9 Apr | 9 Apr | ||||
59. | Purple Finch | 0 | 4 | 0 | 4 | 0 | 4 | 2 (22 Apr) | 9 | 2 | 22 Apr | 29 Apr | ||||
60. | House Finch | 6 | 84 | 22 | 112 | 0 | 112 | 17 (11 Apr) | 50 | 11 | 15 Mar | 7 May | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
61. | Goldfinch | 0 | 16 | 0 | 16 | 0 | 16 | 9 ( 4 Apr) | 14 | 3 | 4 Apr | 11 Apr | ||||
62. | Lawrence's Goldfinch | 0 | 296 | 56 | 352 | 0 | 352 | 58 ( 9 Apr) | 86 | 19 | 4 Apr | 10 May | ||||
63. | American Goldfinch | 0 | 18 | 0 | 18 | 0 | 18 | 12 (19 Apr) | 14 | 3 | 7 Apr | 29 Apr | ||||
64. | Lesser Goldfinch | 2 | 251 | 42 | 295 | 0 | 295 | 26 (11 Apr) | 91 | 20 | 15 Mar | 10 May | ||||
65. | sparrow sp. | 0 | 11 | 0 | 11 | 0 | 11 | 4 (10 Apr) | 18 | 4 | 5 Apr | 19 Apr | ||||
66. | Lark Sparrow | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 7 Apr) | 5 | 1 | 7 Apr | 7 Apr | ||||
67. | Chipping Sparrow | 0 | 383 | 54 | 437 | 0 | 437 | 80 (22 Apr) | 82 | 18 | 4 Apr | 10 May | ||||
68. | Dark-eyed Junco | 0 | 2 | 0 | 2 | 0 | 2 | 1 ( 5 Apr) | 9 | 2 | 5 Apr | 6 Apr | ||||
69. | White-crowned Sparrow | 0 | 10 | 4 | 14 | 0 | 14 | 7 (29 Apr) | 27 | 6 | 22 Apr | 10 May | ||||
70. | Yellow-headed Blackbird | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 5 | 1 | 2 May | 2 May | ||||
71. | Bullock's Oriole | 0 | 38 | 56 | 94 | 0 | 94 | 20 ( 7 May) | 64 | 14 | 6 Apr | 10 May | ||||
72. | Hooded Oriole | 0 | 30 | 27 | 57 | 0 | 57 | 13 (10 May) | 68 | 15 | 7 Apr | 10 May | ||||
73. | Red-winged Blackbird | 0 | 11 | 0 | 11 | 0 | 11 | 4 ( 9 Apr) | 23 | 5 | 9 Apr | 29 Apr | ||||
74. | Brown-headed Cowbird | 0 | 0 | 8 | 8 | 0 | 8 | 4 ( 8 May) | 14 | 3 | 2 May | 8 May | ||||
75. | Brewer's Blackbird | 0 | 1 | 0 | 1 | 0 | 1 | 1 (19 Apr) | 5 | 1 | 19 Apr | 19 Apr | ||||
76. | blackbird sp. | 0 | 3 | 1 | 4 | 0 | 4 | 3 (21 Apr) | 9 | 2 | 21 Apr | 2 May | ||||
77. | Great-tailed Grackle | 0 | 0 | 4 | 4 | 0 | 4 | 4 ( 9 May) | 5 | 1 | 9 May | 9 May | ||||
78. | Orange-crowned Warbler | 0 | 96 | 35 | 131 | 0 | 131 | 47 (29 Apr) | 82 | 18 | 4 Apr | 10 May | ||||
79. | Nashville Warbler | 0 | 136 | 92 | 228 | 0 | 228 | 61 (29 Apr) | 68 | 15 | 4 Apr | 10 May | ||||
80. | MacGillivray's Warbler | 0 | 3 | 5 | 8 | 0 | 8 | 3 ( 8 May) | 27 | 6 | 22 Apr | 9 May | ||||
81. | Common Yellowthroat | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 5 | 1 | 2 May | 2 May | ||||
82. | American Yellow Warbler | 0 | 25 | 267 | 292 | 0 | 292 | 88 ( 2 May) | 55 | 12 | 11 Apr | 10 May | ||||
83. | Yellow-rumped Warbler (Audubon's) | 3 | 1671 | 21 | 1695 | 0 | 1695 | 393 ( 7 Apr) | 86 | 19 | 15 Mar | 8 May | ||||
84. | Black-throated Grey Warbler | 0 | 120 | 128 | 248 | 0 | 248 | 77 ( 8 May) | 86 | 19 | 4 Apr | 10 May | ||||
85. | Townsend's Warbler | 0 | 71 | 221 | 292 | 0 | 292 | 119 ( 8 May) | 45 | 10 | 6 Apr | 10 May | ||||
86. | Hermit Warbler | 0 | 141 | 129 | 270 | 0 | 270 | 72 (29 Apr) | 59 | 13 | 11 Apr | 10 May | ||||
87. | Wilson's Warbler | 0 | 34 | 139 | 173 | 0 | 173 | 88 ( 8 May) | 45 | 10 | 21 Apr | 10 May | ||||
88. | Summer Tanager | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 8 May) | 5 | 1 | 8 May | 8 May | ||||
89. | Western Tanager | 0 | 286 | 1168 | 1454 | 0 | 1454 | 632 ( 7 May) | 59 | 13 | 7 Apr | 10 May | ||||
90. | Black-headed Grosbeak | 0 | 138 | 320 | 458 | 0 | 458 | 152 ( 7 May) | 59 | 13 | 11 Apr | 10 May | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
91. | Blue Grosbeak | 0 | 1 | 2 | 3 | 0 | 3 | 2 ( 2 May) | 9 | 2 | 29 Apr | 2 May | ||||
92. | Lazuli Bunting | 0 | 2781 | 979 | 3760 | 0 | 3760 | 1141 (29 Apr) | 82 | 18 | 5 Apr | 10 May | ||||
93. | passerine sp. | 9 | 1024 | 731 | 1764 | 0 | 1764 | 427 ( 8 May) | 91 | 20 | 15 Mar | 10 May | ||||
94. | warbler sp. | 0 | 357 | 486 | 843 | 0 | 843 | 329 ( 8 May) | 77 | 17 | 4 Apr | 10 May | ||||
Species | Mar | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
Totals | 175 | 10640 | 5837 | 16652 | 1 | 16651 | 100 | 22 | ||||||||
Observation hours | 5:10 | 40:59 | 13:07 | 59:16 |
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