Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
1. | Vaux's Swift | 58 | 7 | 65 | 0 | 65 | 34 (30 Apr) | 62 | 8 | 17 Apr | 1 May | ||||
2. | White-throated Swift | 39 | 0 | 39 | 0 | 39 | 28 (16 Apr) | 23 | 3 | 16 Apr | 25 Apr | ||||
3. | Costa's Hummingbird | 2 | 0 | 2 | 0 | 2 | 1 (22 Apr) | 15 | 2 | 22 Apr | 26 Apr | ||||
4. | Calliope Hummingbird | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 8 | 1 | 29 Apr | 29 Apr | ||||
5. | Rufous Hummingbird | 3 | 2 | 5 | 0 | 5 | 2 ( 1 May) | 31 | 4 | 23 Apr | 1 May | ||||
6. | hummingbird sp | 6 | 0 | 6 | 0 | 6 | 2 (21 Apr) | 38 | 5 | 21 Apr | 29 Apr | ||||
7. | Collared Dove | 1 | 0 | 1 | 0 | 1 | 1 (30 Apr) | 8 | 1 | 30 Apr | 30 Apr | ||||
8. | Mourning Dove | 6 | 12 | 18 | 0 | 18 | 12 ( 1 May) | 15 | 2 | 28 Apr | 1 May | ||||
9. | Killdeer | 1 | 0 | 1 | 0 | 1 | 1 (22 Apr) | 8 | 1 | 22 Apr | 22 Apr | ||||
10. | Greater Yellowlegs | 1 | 0 | 1 | 0 | 1 | 1 (17 Apr) | 8 | 1 | 17 Apr | 17 Apr | ||||
11. | Least Sandpiper | 3 | 0 | 3 | 0 | 3 | 3 (23 Apr) | 8 | 1 | 23 Apr | 23 Apr | ||||
12. | Calidris sp. | 2 | 0 | 2 | 0 | 2 | 2 (18 Apr) | 8 | 1 | 18 Apr | 18 Apr | ||||
13. | Turkey Vulture | 45 | 0 | 45 | 0 | 45 | 36 (28 Apr) | 31 | 4 | 17 Apr | 28 Apr | ||||
14. | Osprey | 1 | 0 | 1 | 0 | 1 | 1 (24 Apr) | 8 | 1 | 24 Apr | 24 Apr | ||||
15. | Golden Eagle | 1 | 0 | 1 | 0 | 1 | 1 (17 Apr) | 8 | 1 | 17 Apr | 17 Apr | ||||
16. | Northern Harrier | 1 | 0 | 1 | 0 | 1 | 1 (17 Apr) | 8 | 1 | 17 Apr | 17 Apr | ||||
17. | Swainson's Hawk | 3 | 0 | 3 | 0 | 3 | 3 (17 Apr) | 8 | 1 | 17 Apr | 17 Apr | ||||
18. | Red-tailed Hawk | 1 | 0 | 1 | 0 | 1 | 1 (17 Apr) | 8 | 1 | 17 Apr | 17 Apr | ||||
19. | Belted Kingfisher | 3 | 0 | 3 | 0 | 3 | 2 (24 Apr) | 15 | 2 | 24 Apr | 26 Apr | ||||
20. | Acorn Woodpecker | 1 | 0 | 1 | 0 | 1 | 1 (25 Apr) | 8 | 1 | 25 Apr | 25 Apr | ||||
21. | Ladder-backed Woodpecker | 0 | 2 | 2 | 0 | 2 | 2 ( 1 May) | 8 | 1 | 1 May | 1 May | ||||
22. | woodpecker sp. | 2 | 0 | 2 | 0 | 2 | 1 (16 Apr) | 15 | 2 | 16 Apr | 30 Apr | ||||
23. | American Kestrel | 2 | 0 | 2 | 0 | 2 | 1 (24 Apr) | 15 | 2 | 24 Apr | 26 Apr | ||||
24. | Merlin | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 8 | 1 | 29 Apr | 29 Apr | ||||
25. | Black Phoebe | 2 | 0 | 2 | 0 | 2 | 1 (29 Apr) | 15 | 2 | 29 Apr | 30 Apr | ||||
26. | Olive-sided Flycatcher | 0 | 6 | 6 | 0 | 6 | 6 ( 1 May) | 8 | 1 | 1 May | 1 May | ||||
27. | Western Wood Pewee | 1 | 0 | 1 | 0 | 1 | 1 (26 Apr) | 8 | 1 | 26 Apr | 26 Apr | ||||
28. | Hammond's Flycatcher | 28 | 2 | 30 | 0 | 30 | 9 (22 Apr) | 62 | 8 | 21 Apr | 1 May | ||||
29. | American Dusky Flycatcher | 24 | 7 | 31 | 0 | 31 | 7 ( 1 May) | 69 | 9 | 16 Apr | 1 May | ||||
30. | American Grey Flycatcher | 18 | 4 | 22 | 0 | 22 | 4 (16 Apr) | 69 | 9 | 16 Apr | 1 May | ||||
Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
31. | Pacific-slope Flycatcher | 6 | 1 | 7 | 0 | 7 | 3 (23 Apr) | 31 | 4 | 22 Apr | 1 May | ||||
32. | Empidonax sp. | 18 | 1 | 19 | 0 | 19 | 8 (23 Apr) | 46 | 6 | 23 Apr | 1 May | ||||
33. | Vermilion Flycatcher | 1 | 0 | 1 | 0 | 1 | 1 (21 Apr) | 8 | 1 | 21 Apr | 21 Apr | ||||
34. | Western Kingbird | 83 | 3 | 86 | 0 | 86 | 20 (23 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
35. | Ash-throated Flycatcher | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 8 | 1 | 29 Apr | 29 Apr | ||||
36. | Warbling Vireo | 88 | 2 | 90 | 0 | 90 | 24 (25 Apr) | 85 | 11 | 16 Apr | 1 May | ||||
37. | Cassin's Vireo | 45 | 5 | 50 | 0 | 50 | 10 (22 Apr) | 85 | 11 | 16 Apr | 1 May | ||||
38. | Loggerhead Shrike | 0 | 1 | 1 | 0 | 1 | 1 ( 1 May) | 8 | 1 | 1 May | 1 May | ||||
39. | Phainopepla | 13 | 3 | 16 | 0 | 16 | 5 (30 Apr) | 46 | 6 | 16 Apr | 1 May | ||||
40. | Shore Lark | 12 | 3 | 15 | 0 | 15 | 3 ( 1 May) | 77 | 10 | 17 Apr | 1 May | ||||
41. | Sand Martin | 1 | 0 | 1 | 0 | 1 | 1 (21 Apr) | 8 | 1 | 21 Apr | 21 Apr | ||||
42. | Tree Swallow | 18 | 0 | 18 | 0 | 18 | 6 (23 Apr) | 46 | 6 | 18 Apr | 30 Apr | ||||
43. | Violet-green Swallow | 16 | 0 | 16 | 2 | 14 | 6 (30 Apr) | 38 | 5 | 17 Apr | 30 Apr | ||||
44. | Purple Martin | 1 | 0 | 1 | 0 | 1 | 1 (23 Apr) | 8 | 1 | 23 Apr | 23 Apr | ||||
45. | Northern Rough-winged Swallow | 2 | 0 | 2 | 0 | 2 | 1 (29 Apr) | 15 | 2 | 29 Apr | 30 Apr | ||||
46. | Swallow | 22 | 1 | 23 | 0 | 23 | 8 (23 Apr) | 62 | 8 | 16 Apr | 1 May | ||||
47. | Cliff Swallow | 97 | 1 | 98 | 0 | 98 | 31 (30 Apr) | 77 | 10 | 17 Apr | 1 May | ||||
48. | Ruby-crowned Kinglet | 54 | 4 | 58 | 0 | 58 | 11 (26 Apr) | 85 | 11 | 18 Apr | 1 May | ||||
49. | Blue-grey Gnatcatcher | 2 | 0 | 2 | 0 | 2 | 2 (30 Apr) | 8 | 1 | 30 Apr | 30 Apr | ||||
50. | Northern Mockingbird | 0 | 2 | 2 | 0 | 2 | 2 ( 1 May) | 8 | 1 | 1 May | 1 May | ||||
51. | Starling | 27 | 0 | 27 | 0 | 27 | 10 (30 Apr) | 46 | 6 | 21 Apr | 30 Apr | ||||
52. | Townsend's Solitaire | 4 | 0 | 4 | 0 | 4 | 3 (21 Apr) | 15 | 2 | 17 Apr | 21 Apr | ||||
53. | Swainson's Thrush | 1 | 2 | 3 | 0 | 3 | 2 ( 1 May) | 15 | 2 | 25 Apr | 1 May | ||||
54. | Hermit Thrush | 9 | 1 | 10 | 0 | 10 | 5 (21 Apr) | 38 | 5 | 17 Apr | 1 May | ||||
55. | House Sparrow | 3 | 1 | 4 | 0 | 4 | 2 (24 Apr) | 23 | 3 | 24 Apr | 1 May | ||||
56. | Purple Finch | 6 | 0 | 6 | 0 | 6 | 2 (21 Apr) | 31 | 4 | 21 Apr | 26 Apr | ||||
57. | Cassin's Finch | 2 | 0 | 2 | 0 | 2 | 2 (18 Apr) | 8 | 1 | 18 Apr | 18 Apr | ||||
58. | House Finch | 8 | 0 | 8 | 0 | 8 | 8 (16 Apr) | 8 | 1 | 16 Apr | 16 Apr | ||||
59. | Lawrence's Goldfinch | 13 | 1 | 14 | 0 | 14 | 4 (21 Apr) | 46 | 6 | 21 Apr | 1 May | ||||
60. | Lesser Goldfinch | 42 | 3 | 45 | 0 | 45 | 17 (29 Apr) | 85 | 11 | 16 Apr | 1 May | ||||
Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
61. | sparrow sp. | 3 | 1 | 4 | 0 | 4 | 2 (23 Apr) | 23 | 3 | 23 Apr | 1 May | ||||
62. | Lark Sparrow | 7 | 0 | 7 | 0 | 7 | 2 (22 Apr) | 38 | 5 | 16 Apr | 30 Apr | ||||
63. | Chipping Sparrow | 80 | 3 | 83 | 0 | 83 | 23 (18 Apr) | 69 | 9 | 16 Apr | 1 May | ||||
64. | Brewer's Sparrow | 16 | 7 | 23 | 0 | 23 | 7 ( 1 May) | 54 | 7 | 18 Apr | 1 May | ||||
65. | Fox Sparrow (Red) | 4 | 0 | 4 | 0 | 4 | 4 (21 Apr) | 8 | 1 | 21 Apr | 21 Apr | ||||
66. | Dark-eyed Junco (Oregon) | 5 | 0 | 5 | 0 | 5 | 4 (21 Apr) | 15 | 2 | 21 Apr | 25 Apr | ||||
67. | White-crowned Sparrow | 1 | 0 | 1 | 0 | 1 | 1 (22 Apr) | 8 | 1 | 22 Apr | 22 Apr | ||||
68. | White-crowned Sparrow (Gambel's) | 36 | 0 | 36 | 0 | 36 | 35 (30 Apr) | 15 | 2 | 23 Apr | 30 Apr | ||||
69. | Vesper Sparrow | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 8 | 1 | 29 Apr | 29 Apr | ||||
70. | Savannah Sparrow | 3 | 0 | 3 | 0 | 3 | 1 (21 Apr) | 23 | 3 | 21 Apr | 30 Apr | ||||
71. | Lincoln's Sparrow | 3 | 0 | 3 | 0 | 3 | 3 (21 Apr) | 8 | 1 | 21 Apr | 21 Apr | ||||
72. | Spotted Towhee | 1 | 0 | 1 | 0 | 1 | 1 (30 Apr) | 8 | 1 | 30 Apr | 30 Apr | ||||
73. | Yellow-headed Blackbird | 1 | 0 | 1 | 0 | 1 | 1 (30 Apr) | 8 | 1 | 30 Apr | 30 Apr | ||||
74. | Western Meadowlark | 6 | 0 | 6 | 0 | 6 | 4 (21 Apr) | 23 | 3 | 21 Apr | 23 Apr | ||||
75. | Scott's Oriole | 3 | 1 | 4 | 0 | 4 | 1 (17 Apr) | 31 | 4 | 17 Apr | 1 May | ||||
76. | Bullock's Oriole | 84 | 11 | 95 | 0 | 95 | 29 (23 Apr) | 77 | 10 | 21 Apr | 1 May | ||||
77. | Hooded Oriole | 4 | 0 | 4 | 0 | 4 | 1 (18 Apr) | 31 | 4 | 18 Apr | 30 Apr | ||||
78. | Tricolored Blackbird | 18 | 0 | 18 | 0 | 18 | 14 (21 Apr) | 23 | 3 | 21 Apr | 24 Apr | ||||
79. | Red-winged Blackbird | 3 | 1 | 4 | 0 | 4 | 1 (21 Apr) | 31 | 4 | 21 Apr | 1 May | ||||
80. | Brown-headed Cowbird | 94 | 2 | 96 | 7 | 89 | 20 (30 Apr) | 77 | 10 | 16 Apr | 1 May | ||||
81. | Brewer's Blackbird | 72 | 0 | 72 | 1 | 71 | 20 (22 Apr) | 69 | 9 | 16 Apr | 30 Apr | ||||
82. | Orange-crowned Warbler | 559 | 37 | 596 | 0 | 596 | 105 (23 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
83. | Nashville Warbler | 58 | 1 | 59 | 0 | 59 | 15 (23 Apr) | 92 | 12 | 16 Apr | 1 May | ||||
84. | MacGillivray's Warbler | 11 | 1 | 12 | 0 | 12 | 3 (21 Apr) | 62 | 8 | 18 Apr | 1 May | ||||
85. | Common Yellowthroat | 1 | 0 | 1 | 0 | 1 | 1 (24 Apr) | 8 | 1 | 24 Apr | 24 Apr | ||||
86. | American Yellow Warbler | 83 | 20 | 103 | 0 | 103 | 36 (30 Apr) | 69 | 9 | 22 Apr | 1 May | ||||
87. | Myrtle Warbler | 17 | 0 | 17 | 0 | 17 | 13 (16 Apr) | 23 | 3 | 16 Apr | 18 Apr | ||||
88. | Yellow-rumped Warbler (Audubon's) | 1293 | 59 | 1352 | 0 | 1352 | 298 (21 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
89. | Yellow-rumped Warbler (Myrtle) | 13 | 0 | 13 | 0 | 13 | 4 (16 Apr) | 62 | 8 | 16 Apr | 30 Apr | ||||
90. | Black-throated Grey Warbler | 63 | 5 | 68 | 0 | 68 | 11 (23 Apr) | 92 | 12 | 16 Apr | 1 May | ||||
Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
91. | Townsend's Warbler | 64 | 7 | 71 | 0 | 71 | 11 (23 Apr) | 85 | 11 | 18 Apr | 1 May | ||||
92. | Hermit Warbler | 7 | 0 | 7 | 0 | 7 | 2 (21 Apr) | 38 | 5 | 21 Apr | 25 Apr | ||||
93. | Wilson's Warbler | 295 | 25 | 320 | 0 | 320 | 67 (23 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
94. | Western Tanager | 327 | 70 | 397 | 0 | 397 | 70 (25 Apr) | 85 | 11 | 17 Apr | 1 May | ||||
95. | Black-headed Grosbeak | 190 | 30 | 220 | 8 | 212 | 38 (23 Apr) | 92 | 12 | 17 Apr | 1 May | ||||
96. | Blue Grosbeak | 4 | 0 | 4 | 0 | 4 | 3 (23 Apr) | 15 | 2 | 23 Apr | 29 Apr | ||||
97. | Lazuli Bunting | 216 | 23 | 239 | 0 | 239 | 48 (23 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
98. | passerine sp. | 244 | 16 | 260 | 0 | 260 | 46 (23 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
99. | warbler sp. | 189 | 3 | 192 | 0 | 192 | 59 (21 Apr) | 100 | 13 | 16 Apr | 1 May | ||||
Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
Totals | 4931 | 400 | 5331 | 18 | 5313 | 100 | 13 | ||||||||
Observation hours | 49:05 | 4:00 | 53:05 |
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