Also present
Totals Butterbredt Spring (CA) 2025
| Species | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Vaux's Swift | 24 | 24 | 0 | 24 | 13 (23 Apr) | 67 | 6 | 17 Apr | 26 Apr | ||||
| 2. | White-throated Swift | 39 | 39 | 0 | 39 | 28 (16 Apr) | 33 | 3 | 16 Apr | 25 Apr | ||||
| 3. | Costa's Hummingbird | 2 | 2 | 0 | 2 | 1 (22 Apr) | 22 | 2 | 22 Apr | 26 Apr | ||||
| 4. | Rufous Hummingbird | 1 | 1 | 0 | 1 | 1 (23 Apr) | 11 | 1 | 23 Apr | 23 Apr | ||||
| 5. | hummingbird sp | 5 | 5 | 0 | 5 | 2 (21 Apr) | 44 | 4 | 21 Apr | 26 Apr | ||||
| 6. | Killdeer | 1 | 1 | 0 | 1 | 1 (22 Apr) | 11 | 1 | 22 Apr | 22 Apr | ||||
| 7. | Greater Yellowlegs | 1 | 1 | 0 | 1 | 1 (17 Apr) | 11 | 1 | 17 Apr | 17 Apr | ||||
| 8. | Least Sandpiper | 3 | 3 | 0 | 3 | 3 (23 Apr) | 11 | 1 | 23 Apr | 23 Apr | ||||
| 9. | Calidris sp. | 2 | 2 | 0 | 2 | 2 (18 Apr) | 11 | 1 | 18 Apr | 18 Apr | ||||
| 10. | Turkey Vulture | 9 | 9 | 0 | 9 | 4 (24 Apr) | 33 | 3 | 17 Apr | 26 Apr | ||||
| 11. | Osprey | 1 | 1 | 0 | 1 | 1 (24 Apr) | 11 | 1 | 24 Apr | 24 Apr | ||||
| 12. | Golden Eagle | 1 | 1 | 0 | 1 | 1 (17 Apr) | 11 | 1 | 17 Apr | 17 Apr | ||||
| 13. | Northern Harrier | 1 | 1 | 0 | 1 | 1 (17 Apr) | 11 | 1 | 17 Apr | 17 Apr | ||||
| 14. | Swainson's Hawk | 3 | 3 | 0 | 3 | 3 (17 Apr) | 11 | 1 | 17 Apr | 17 Apr | ||||
| 15. | Red-tailed Hawk | 1 | 1 | 0 | 1 | 1 (17 Apr) | 11 | 1 | 17 Apr | 17 Apr | ||||
| 16. | Belted Kingfisher | 3 | 3 | 0 | 3 | 2 (24 Apr) | 22 | 2 | 24 Apr | 26 Apr | ||||
| 17. | Acorn Woodpecker | 1 | 1 | 0 | 1 | 1 (25 Apr) | 11 | 1 | 25 Apr | 25 Apr | ||||
| 18. | woodpecker sp. | 1 | 1 | 0 | 1 | 1 (16 Apr) | 11 | 1 | 16 Apr | 16 Apr | ||||
| 19. | American Kestrel | 2 | 2 | 0 | 2 | 1 (24 Apr) | 22 | 2 | 24 Apr | 26 Apr | ||||
| 20. | Western Wood Pewee | 1 | 1 | 0 | 1 | 1 (26 Apr) | 11 | 1 | 26 Apr | 26 Apr | ||||
| 21. | Hammond's Flycatcher | 26 | 26 | 0 | 26 | 9 (22 Apr) | 67 | 6 | 21 Apr | 26 Apr | ||||
| 22. | American Dusky Flycatcher | 14 | 14 | 0 | 14 | 5 (22 Apr) | 56 | 5 | 16 Apr | 25 Apr | ||||
| 23. | American Grey Flycatcher | 15 | 15 | 0 | 15 | 4 (16 Apr) | 67 | 6 | 16 Apr | 26 Apr | ||||
| 24. | Pacific-slope Flycatcher | 5 | 5 | 0 | 5 | 3 (23 Apr) | 22 | 2 | 22 Apr | 23 Apr | ||||
| 25. | Empidonax sp. | 10 | 10 | 0 | 10 | 8 (23 Apr) | 33 | 3 | 23 Apr | 26 Apr | ||||
| 26. | Vermilion Flycatcher | 1 | 1 | 0 | 1 | 1 (21 Apr) | 11 | 1 | 21 Apr | 21 Apr | ||||
| 27. | Western Kingbird | 64 | 64 | 0 | 64 | 20 (23 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 28. | Warbling Vireo | 77 | 77 | 0 | 77 | 24 (25 Apr) | 78 | 7 | 16 Apr | 26 Apr | ||||
| 29. | Cassin's Vireo | 29 | 29 | 0 | 29 | 10 (22 Apr) | 78 | 7 | 16 Apr | 26 Apr | ||||
| 30. | Phainopepla | 7 | 7 | 0 | 7 | 4 (22 Apr) | 33 | 3 | 16 Apr | 22 Apr | ||||
| Species | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Shore Lark | 9 | 9 | 0 | 9 | 2 (17 Apr) | 78 | 7 | 17 Apr | 26 Apr | ||||
| 32. | Sand Martin | 1 | 1 | 0 | 1 | 1 (21 Apr) | 11 | 1 | 21 Apr | 21 Apr | ||||
| 33. | Tree Swallow | 14 | 14 | 0 | 14 | 6 (23 Apr) | 44 | 4 | 18 Apr | 26 Apr | ||||
| 34. | Violet-green Swallow | 10 | 10 | 2 | 8 | 4 (17 Apr) | 44 | 4 | 17 Apr | 26 Apr | ||||
| 35. | Purple Martin | 1 | 1 | 0 | 1 | 1 (23 Apr) | 11 | 1 | 23 Apr | 23 Apr | ||||
| 36. | Swallow | 17 | 17 | 0 | 17 | 8 (23 Apr) | 56 | 5 | 16 Apr | 25 Apr | ||||
| 37. | Cliff Swallow | 64 | 64 | 0 | 64 | 30 (25 Apr) | 78 | 7 | 17 Apr | 26 Apr | ||||
| 38. | Ruby-crowned Kinglet | 36 | 36 | 0 | 36 | 11 (26 Apr) | 78 | 7 | 18 Apr | 26 Apr | ||||
| 39. | Starling | 16 | 16 | 0 | 16 | 8 (21 Apr) | 44 | 4 | 21 Apr | 26 Apr | ||||
| 40. | Townsend's Solitaire | 4 | 4 | 0 | 4 | 3 (21 Apr) | 22 | 2 | 17 Apr | 21 Apr | ||||
| 41. | Swainson's Thrush | 1 | 1 | 0 | 1 | 1 (25 Apr) | 11 | 1 | 25 Apr | 25 Apr | ||||
| 42. | Hermit Thrush | 9 | 9 | 0 | 9 | 5 (21 Apr) | 44 | 4 | 17 Apr | 25 Apr | ||||
| 43. | House Sparrow | 3 | 3 | 0 | 3 | 2 (24 Apr) | 22 | 2 | 24 Apr | 26 Apr | ||||
| 44. | Purple Finch | 6 | 6 | 0 | 6 | 2 (21 Apr) | 44 | 4 | 21 Apr | 26 Apr | ||||
| 45. | Cassin's Finch | 2 | 2 | 0 | 2 | 2 (18 Apr) | 11 | 1 | 18 Apr | 18 Apr | ||||
| 46. | House Finch | 8 | 8 | 0 | 8 | 8 (16 Apr) | 11 | 1 | 16 Apr | 16 Apr | ||||
| 47. | Lawrence's Goldfinch | 7 | 7 | 0 | 7 | 4 (21 Apr) | 33 | 3 | 21 Apr | 26 Apr | ||||
| 48. | Lesser Goldfinch | 20 | 20 | 0 | 20 | 5 (24 Apr) | 78 | 7 | 16 Apr | 26 Apr | ||||
| 49. | sparrow sp. | 2 | 2 | 0 | 2 | 2 (23 Apr) | 11 | 1 | 23 Apr | 23 Apr | ||||
| 50. | Lark Sparrow | 6 | 6 | 0 | 6 | 2 (22 Apr) | 44 | 4 | 16 Apr | 25 Apr | ||||
| 51. | Chipping Sparrow | 80 | 80 | 0 | 80 | 23 (18 Apr) | 89 | 8 | 16 Apr | 26 Apr | ||||
| 52. | Brewer's Sparrow | 11 | 11 | 0 | 11 | 3 (24 Apr) | 56 | 5 | 18 Apr | 26 Apr | ||||
| 53. | Fox Sparrow (Red) | 4 | 4 | 0 | 4 | 4 (21 Apr) | 11 | 1 | 21 Apr | 21 Apr | ||||
| 54. | Dark-eyed Junco (Oregon) | 5 | 5 | 0 | 5 | 4 (21 Apr) | 22 | 2 | 21 Apr | 25 Apr | ||||
| 55. | White-crowned Sparrow | 1 | 1 | 0 | 1 | 1 (22 Apr) | 11 | 1 | 22 Apr | 22 Apr | ||||
| 56. | White-crowned Sparrow (Gambel's) | 1 | 1 | 0 | 1 | 1 (23 Apr) | 11 | 1 | 23 Apr | 23 Apr | ||||
| 57. | Savannah Sparrow | 2 | 2 | 0 | 2 | 1 (21 Apr) | 22 | 2 | 21 Apr | 24 Apr | ||||
| 58. | Lincoln's Sparrow | 3 | 3 | 0 | 3 | 3 (21 Apr) | 11 | 1 | 21 Apr | 21 Apr | ||||
| 59. | Western Meadowlark | 6 | 6 | 0 | 6 | 4 (21 Apr) | 33 | 3 | 21 Apr | 23 Apr | ||||
| 60. | Scott's Oriole | 2 | 2 | 0 | 2 | 1 (17 Apr) | 22 | 2 | 17 Apr | 22 Apr | ||||
| Species | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Bullock's Oriole | 58 | 58 | 0 | 58 | 29 (23 Apr) | 67 | 6 | 21 Apr | 26 Apr | ||||
| 62. | Hooded Oriole | 3 | 3 | 0 | 3 | 1 (18 Apr) | 33 | 3 | 18 Apr | 24 Apr | ||||
| 63. | Tricolored Blackbird | 18 | 18 | 0 | 18 | 14 (21 Apr) | 33 | 3 | 21 Apr | 24 Apr | ||||
| 64. | Red-winged Blackbird | 2 | 2 | 0 | 2 | 1 (21 Apr) | 22 | 2 | 21 Apr | 26 Apr | ||||
| 65. | Brown-headed Cowbird | 66 | 66 | 4 | 62 | 17 (24 Apr) | 78 | 7 | 16 Apr | 26 Apr | ||||
| 66. | Brewer's Blackbird | 56 | 56 | 0 | 56 | 20 (22 Apr) | 78 | 7 | 16 Apr | 26 Apr | ||||
| 67. | Orange-crowned Warbler | 408 | 408 | 0 | 408 | 105 (23 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 68. | Nashville Warbler | 55 | 55 | 0 | 55 | 15 (23 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 69. | MacGillivray's Warbler | 8 | 8 | 0 | 8 | 3 (21 Apr) | 44 | 4 | 18 Apr | 24 Apr | ||||
| 70. | Common Yellowthroat | 1 | 1 | 0 | 1 | 1 (24 Apr) | 11 | 1 | 24 Apr | 24 Apr | ||||
| 71. | American Yellow Warbler | 19 | 19 | 0 | 19 | 5 (25 Apr) | 56 | 5 | 22 Apr | 26 Apr | ||||
| 72. | Myrtle Warbler | 17 | 17 | 0 | 17 | 13 (16 Apr) | 33 | 3 | 16 Apr | 18 Apr | ||||
| 73. | Yellow-rumped Warbler (Audubon's) | 1014 | 1014 | 0 | 1014 | 298 (21 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 74. | Yellow-rumped Warbler (Myrtle) | 11 | 11 | 0 | 11 | 4 (16 Apr) | 67 | 6 | 16 Apr | 26 Apr | ||||
| 75. | Black-throated Grey Warbler | 55 | 55 | 0 | 55 | 11 (23 Apr) | 89 | 8 | 16 Apr | 26 Apr | ||||
| 76. | Townsend's Warbler | 49 | 49 | 0 | 49 | 11 (23 Apr) | 78 | 7 | 18 Apr | 26 Apr | ||||
| 77. | Hermit Warbler | 7 | 7 | 0 | 7 | 2 (21 Apr) | 56 | 5 | 21 Apr | 25 Apr | ||||
| 78. | Wilson's Warbler | 261 | 261 | 0 | 261 | 67 (23 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 79. | Western Tanager | 258 | 258 | 0 | 258 | 70 (25 Apr) | 78 | 7 | 17 Apr | 26 Apr | ||||
| 80. | Black-headed Grosbeak | 132 | 132 | 0 | 132 | 38 (23 Apr) | 89 | 8 | 17 Apr | 26 Apr | ||||
| 81. | Blue Grosbeak | 3 | 3 | 0 | 3 | 3 (23 Apr) | 11 | 1 | 23 Apr | 23 Apr | ||||
| 82. | Lazuli Bunting | 129 | 129 | 0 | 129 | 48 (23 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 83. | passerine sp. | 180 | 180 | 0 | 180 | 46 (23 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| 84. | warbler sp. | 159 | 159 | 0 | 159 | 59 (21 Apr) | 100 | 9 | 16 Apr | 26 Apr | ||||
| Species | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 3670 | 3670 | 6 | 3664 | 100 | 9 | ||||||||
| Observation hours | 37:04 | 37:04 | ||||||||||||
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