| Year | |
| Period | |
| count-field | |
| Also present | |
| Species | Feb | Mar | Apr | May | Totals | W | E | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Blue-winged Teal | 0 | 10 | 7 | 0 | 17 | 5 | 12 | 6 (11 Apr) | 10 | 6 | 14 Mar | 21 Apr | ||||
| 2. | Gadwall | 0 | 5 | 5 | 0 | 10 | 10 | 0 | 4 (12 Apr) | 8 | 5 | 7 Mar | 13 Apr | ||||
| 3. | American Wigeon | 1 | 6 | 24 | 0 | 31 | 3 | 28 | 19 (11 Apr) | 8 | 5 | 12 Feb | 11 Apr | ||||
| 4. | Black Duck | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 2 (3 Feb) | 2 | 1 | 3 Feb | 3 Feb | ||||
| 5. | Pintail | 35 | 3 | 0 | 0 | 38 | 5 | 33 | 27 (27 Feb) | 10 | 6 | 7 Feb | 14 Mar | ||||
| 6. | Green-winged Teal | 4 | 0 | 2 | 0 | 6 | 4 | 2 | 2 (16 Feb) | 5 | 3 | 16 Feb | 3 Apr | ||||
| 7. | Ring-necked Duck | 0 | 0 | 3 | 0 | 3 | 0 | 3 | 2 (3 Apr) | 3 | 2 | 3 Apr | 13 Apr | ||||
| 8. | Scaup | 8 | 0 | 0 | 0 | 8 | 3 | 5 | 5 (29 Feb) | 5 | 3 | 20 Feb | 29 Feb | ||||
| 9. | Lesser Scaup | 1 | 10 | 8 | 0 | 19 | 5 | 14 | 8 (3 Apr) | 8 | 5 | 5 Feb | 3 Apr | ||||
| 10. | Aythya sp. | 0 | 2 | 0 | 0 | 2 | 0 | 2 | 2 (10 Mar) | 2 | 1 | 10 Mar | 10 Mar | ||||
| 11. | Greater / Lesser Scaup | 9 | 2 | 0 | 0 | 11 | 0 | 11 | 9 (29 Feb) | 3 | 2 | 29 Feb | 15 Mar | ||||
| 12. | Eider | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 (21 Feb) | 2 | 1 | 21 Feb | 21 Feb | ||||
| 13. | Surf Scoter | 46 | 17 | 1 | 0 | 64 | 48 | 16 | 9 (3 Feb) | 30 | 18 | 3 Feb | 28 Apr | ||||
| 14. | White-winged Scoter | 1 | 3 | 1 | 0 | 5 | 1 | 4 | 3 (12 Mar) | 5 | 3 | 21 Feb | 28 Apr | ||||
| 15. | Black Scoter | 5867 | 405 | 155 | 0 | 6427 | 6117 | 310 | 1376 (4 Feb) | 74 | 45 | 3 Feb | 28 Apr | ||||
| 16. | Surf/Black Scoter | 351 | 40 | 0 | 0 | 391 | 388 | 3 | 93 (3 Feb) | 18 | 11 | 3 Feb | 18 Mar | ||||
| 17. | Long-tailed Duck | 6 | 2 | 0 | 0 | 8 | 2 | 6 | 3 (29 Feb) | 10 | 6 | 4 Feb | 13 Mar | ||||
| 18. | Red-breasted Merganser | 184 | 143 | 2 | 0 | 329 | 158 | 171 | 52 (8 Mar) | 52 | 32 | 3 Feb | 21 Apr | ||||
| 19. | Chimney Swift | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 2 (21 Apr) | 2 | 1 | 21 Apr | 21 Apr | ||||
| 20. | Slavonian Grebe | 12 | 6 | 0 | 0 | 18 | 6 | 12 | 5 (20 Feb) | 20 | 12 | 3 Feb | 18 Mar | ||||
| 21. | American Oystercatcher | 4 | 5 | 0 | 0 | 9 | 5 | 4 | 3 (5 Mar) | 8 | 5 | 13 Feb | 13 Mar | ||||
| 22. | Black-necked Stilt | 0 | 0 | 0 | 4 | 4 | 4 | 0 | 4 (14 May) | 2 | 1 | 14 May | 14 May | ||||
| 23. | Grey Plover | 0 | 0 | 8 | 0 | 8 | 0 | 8 | 4 (21 Apr) | 3 | 2 | 21 Apr | 25 Apr | ||||
| 24. | Killdeer | 0 | 2 | 0 | 0 | 2 | 2 | 0 | 2 (12 Mar) | 2 | 1 | 12 Mar | 12 Mar | ||||
| 25. | Piping Plover | 0 | 4 | 0 | 0 | 4 | 0 | 4 | 3 (10 Mar) | 3 | 2 | 10 Mar | 11 Mar | ||||
| 26. | Wilson's Plover | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (28 Apr) | 2 | 1 | 28 Apr | 28 Apr | ||||
| 27. | Hudsonian Whimbrel | 0 | 0 | 22 | 1 | 23 | 2 | 21 | 19 (21 Apr) | 8 | 5 | 13 Apr | 1 May | ||||
| 28. | Short-billed Dowitcher | 0 | 0 | 56 | 0 | 56 | 2 | 54 | 53 (21 Apr) | 5 | 3 | 11 Apr | 21 Apr | ||||
| 29. | Wilson's Snipe | 0 | 18 | 0 | 0 | 18 | 1 | 17 | 17 (7 Mar) | 3 | 2 | 7 Mar | 11 Mar | ||||
| 30. | Grey Phalarope | 0 | 13 | 0 | 0 | 13 | 0 | 13 | 13 (6 Mar) | 2 | 1 | 6 Mar | 6 Mar | ||||
| Species | Feb | Mar | Apr | May | Totals | W | E | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Red-necked Phalarope | 0 | 0 | 0 | 242 | 242 | 0 | 242 | 221 (2 May) | 3 | 2 | 1 May | 2 May | ||||
| 32. | Spotted Sandpiper | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (14 May) | 2 | 1 | 14 May | 14 May | ||||
| 33. | Solitary Sandpiper | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 (13 Apr) | 2 | 1 | 13 Apr | 13 Apr | ||||
| 34. | Lesser Yellowlegs | 0 | 0 | 8 | 0 | 8 | 3 | 5 | 3 (21 Apr) | 8 | 5 | 3 Apr | 28 Apr | ||||
| 35. | Willet (Eastern) | 0 | 0 | 7 | 0 | 7 | 0 | 7 | 5 (21 Apr) | 5 | 3 | 3 Apr | 21 Apr | ||||
| 36. | Greater Yellowlegs | 0 | 3 | 24 | 5 | 32 | 11 | 21 | 8 (13 Apr) | 21 | 13 | 7 Mar | 1 May | ||||
| 37. | Turnstone | 0 | 0 | 4 | 25 | 29 | 0 | 29 | 23 (14 May) | 7 | 4 | 21 Apr | 14 May | ||||
| 38. | Knot | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 2 (14 May) | 2 | 1 | 14 May | 14 May | ||||
| 39. | Dunlin | 0 | 0 | 6 | 0 | 6 | 1 | 5 | 5 (21 Apr) | 3 | 2 | 6 Apr | 21 Apr | ||||
| 40. | Least Sandpiper | 0 | 2 | 3 | 2 | 7 | 3 | 4 | 2 (13 Apr) | 8 | 5 | 7 Mar | 2 May | ||||
| 41. | White-rumped Sandpiper | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (1 May) | 2 | 1 | 1 May | 1 May | ||||
| 42. | Pectoral Sandpiper | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (12 Mar) | 2 | 1 | 12 Mar | 12 Mar | ||||
| 43. | Semipalmated Sandpiper | 0 | 0 | 0 | 12 | 12 | 0 | 12 | 12 (14 May) | 2 | 1 | 14 May | 14 May | ||||
| 44. | Black Skimmer | 0 | 2 | 1 | 0 | 3 | 0 | 3 | 2 (14 Mar) | 3 | 2 | 14 Mar | 23 Apr | ||||
| 45. | Least Tern | 0 | 0 | 1511 | 303 | 1814 | 0 | 1814 | 270 (26 Apr) | 30 | 18 | 3 Apr | 14 May | ||||
| 46. | Gull-billed Tern | 0 | 0 | 1 | 2 | 3 | 1 | 2 | 2 (14 May) | 3 | 2 | 28 Apr | 14 May | ||||
| 47. | Caspian Tern | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (26 Apr) | 2 | 1 | 26 Apr | 26 Apr | ||||
| 48. | Black Tern | 0 | 0 | 8 | 1 | 9 | 0 | 9 | 2 (22 Apr) | 10 | 6 | 22 Apr | 14 May | ||||
| 49. | Forster's Tern | 2861 | 1242 | 3943 | 6 | 8052 | 0 | 8052 | 1093 (3 Apr) | 95 | 58 | 3 Feb | 1 May | ||||
| 50. | Common Tern | 0 | 0 | 5460 | 490 | 5950 | 0 | 5950 | 1456 (26 Apr) | 33 | 20 | 3 Apr | 14 May | ||||
| 51. | Roseate Tern | 0 | 0 | 62 | 0 | 62 | 0 | 62 | 25 (27 Apr) | 10 | 6 | 22 Apr | 28 Apr | ||||
| 52. | Sandwich Tern | 0 | 2 | 2793 | 36 | 2831 | 0 | 2831 | 478 (27 Apr) | 38 | 23 | 17 Mar | 14 May | ||||
| 53. | Royal Tern | 19 | 563 | 3958 | 409 | 4949 | 0 | 4949 | 736 (21 Apr) | 74 | 45 | 11 Feb | 14 May | ||||
| 54. | Little Gull | 1 | 1 | 1 | 0 | 3 | 0 | 3 | 1 (11 Feb) | 5 | 3 | 11 Feb | 27 Apr | ||||
| 55. | Bonaparte's Gull | 4745 | 7802 | 869 | 2 | 13418 | 108 | 13310 | 1732 (14 Mar) | 97 | 59 | 3 Feb | 1 May | ||||
| 56. | Black-headed Gull | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (7 Feb) | 2 | 1 | 7 Feb | 7 Feb | ||||
| 57. | Laughing Gull | 10 | 224 | 1896 | 151 | 2281 | 0 | 2281 | 294 (12 Apr) | 72 | 44 | 11 Feb | 14 May | ||||
| 58. | Ring-billed Gull | 237 | 133 | 23 | 1 | 394 | 0 | 394 | 41 (11 Feb) | 84 | 51 | 3 Feb | 1 May | ||||
| 59. | Herring Gull | 1488 | 2754 | 682 | 5 | 4929 | 0 | 4929 | 350 (8 Mar) | 97 | 59 | 3 Feb | 1 May | ||||
| 60. | Great Black-backed Gull | 165 | 87 | 28 | 0 | 280 | 0 | 280 | 30 (21 Feb) | 77 | 47 | 4 Feb | 27 Apr | ||||
| Species | Feb | Mar | Apr | May | Totals | W | E | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Lesser Black-backed Gull | 461 | 1554 | 859 | 18 | 2892 | 0 | 2892 | 266 (3 Apr) | 98 | 60 | 3 Feb | 14 May | ||||
| 62. | California Gull | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (14 Feb) | 2 | 1 | 14 Feb | 14 Feb | ||||
| 63. | Iceland Gull | 2 | 1 | 0 | 0 | 3 | 1 | 2 | 1 (4 Feb) | 5 | 3 | 4 Feb | 6 Mar | ||||
| 64. | Arctic Skua | 0 | 0 | 156 | 8 | 164 | 8 | 156 | 39 (23 Apr) | 26 | 16 | 11 Apr | 14 May | ||||
| 65. | Pomarine Skua | 0 | 0 | 3 | 0 | 3 | 0 | 3 | 2 (21 Apr) | 3 | 2 | 21 Apr | 27 Apr | ||||
| 66. | Puffin | 1 | 12 | 0 | 0 | 13 | 0 | 13 | 9 (6 Mar) | 8 | 5 | 13 Feb | 17 Mar | ||||
| 67. | Razorbill | 10398 | 20979 | 1 | 0 | 31378 | 956 | 30422 | 6355 (5 Mar) | 61 | 37 | 3 Feb | 3 Apr | ||||
| 68. | Little Auk | 100 | 31 | 0 | 0 | 131 | 18 | 113 | 40 (3 Feb) | 20 | 12 | 3 Feb | 11 Mar | ||||
| 69. | Guillemot | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (9 Mar) | 2 | 1 | 9 Mar | 9 Mar | ||||
| 70. | Red-billed Tropicbird | 1 | 0 | 1 | 0 | 2 | 0 | 2 | 1 (5 Feb) | 3 | 2 | 5 Feb | 23 Apr | ||||
| 71. | Red-throated Diver | 24669 | 7098 | 146 | 0 | 31913 | 228 | 31685 | 3626 (21 Feb) | 85 | 52 | 3 Feb | 27 Apr | ||||
| 72. | Pacific Loon | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (21 Apr) | 2 | 1 | 21 Apr | 21 Apr | ||||
| 73. | Great Northern Diver | 36 | 195 | 1507 | 171 | 1909 | 9 | 1900 | 321 (12 Apr) | 80 | 49 | 3 Feb | 14 May | ||||
| 74. | Wilson's Storm-Petrel | 0 | 0 | 10 | 4 | 14 | 0 | 14 | 5 (27 Apr) | 10 | 6 | 24 Apr | 2 May | ||||
| 75. | Cory's Shearwater | 0 | 0 | 0 | 3 | 3 | 0 | 3 | 3 (14 May) | 2 | 1 | 14 May | 14 May | ||||
| 76. | Sooty Shearwater | 0 | 2 | 7 | 19 | 28 | 0 | 28 | 18 (14 May) | 10 | 6 | 9 Mar | 14 May | ||||
| 77. | Manx Shearwater | 13 | 17 | 5 | 2 | 37 | 1 | 36 | 15 (22 Mar) | 25 | 15 | 3 Feb | 1 May | ||||
| 78. | Gannet | 42278 | 17682 | 9165 | 165 | 69290 | 1681 | 67609 | 7365 (9 Feb) | 100 | 61 | 3 Feb | 14 May | ||||
| 79. | Brown Booby | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (11 Apr) | 2 | 1 | 11 Apr | 11 Apr | ||||
| 80. | Double-crested Cormorant | 17641 | 21024 | 8152 | 4 | 46821 | 0 | 46821 | 6760 (8 Apr) | 90 | 55 | 5 Feb | 14 May | ||||
| 81. | White Ibis | 0 | 27 | 112 | 0 | 139 | 17 | 122 | 62 (3 Apr) | 11 | 7 | 17 Mar | 13 Apr | ||||
| 82. | Glossy Ibis | 0 | 0 | 86 | 0 | 86 | 1 | 85 | 78 (24 Apr) | 5 | 3 | 21 Apr | 25 Apr | ||||
| 83. | Yellow-crowned Night Heron | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (3 Apr) | 2 | 1 | 3 Apr | 3 Apr | ||||
| 84. | Little Blue Heron | 0 | 0 | 4 | 0 | 4 | 0 | 4 | 1 (3 Apr) | 7 | 4 | 3 Apr | 25 Apr | ||||
| 85. | Tricolored Heron | 0 | 1 | 12 | 0 | 13 | 0 | 13 | 9 (3 Apr) | 8 | 5 | 7 Mar | 23 Apr | ||||
| 86. | Snowy Egret | 0 | 0 | 6 | 0 | 6 | 4 | 2 | 4 (7 Apr) | 5 | 3 | 6 Apr | 21 Apr | ||||
| 87. | Cattle Egret | 0 | 0 | 3 | 0 | 3 | 0 | 3 | 2 (21 Apr) | 3 | 2 | 11 Apr | 21 Apr | ||||
| 88. | Great White Egret | 0 | 0 | 6 | 0 | 6 | 0 | 6 | 5 (6 Apr) | 3 | 2 | 3 Apr | 6 Apr | ||||
| 89. | Great Blue Heron | 0 | 0 | 1 | 1 | 2 | 2 | 0 | 1 (6 Apr) | 3 | 2 | 6 Apr | 2 May | ||||
| 90. | Brown Pelican | 872 | 558 | 649 | 17 | 2096 | 0 | 2096 | 155 (9 Feb) | 93 | 57 | 3 Feb | 14 May | ||||
| Species | Feb | Mar | Apr | May | Totals | W | E | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Osprey | 0 | 9 | 4 | 0 | 13 | 4 | 9 | 4 (7 Apr) | 8 | 5 | 8 Mar | 7 Apr | ||||
| 92. | Sharp-shinned Hawk | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (12 Mar) | 2 | 1 | 12 Mar | 12 Mar | ||||
| 93. | Broad-winged Hawk | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (12 Mar) | 2 | 1 | 12 Mar | 12 Mar | ||||
| 94. | American Kestrel | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (6 Apr) | 2 | 1 | 6 Apr | 6 Apr | ||||
| 95. | Merlin | 0 | 0 | 2 | 0 | 2 | 1 | 1 | 1 (6 Apr) | 3 | 2 | 6 Apr | 28 Apr | ||||
| 96. | Sand Martin | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 2 (1 May) | 3 | 2 | 1 May | 2 May | ||||
| 97. | Tree Swallow | 3 | 10 | 0 | 0 | 13 | 10 | 3 | 4 (11 Mar) | 8 | 5 | 13 Feb | 18 Mar | ||||
| 98. | Purple Martin | 0 | 6 | 14 | 0 | 20 | 16 | 4 | 8 (13 Apr) | 18 | 11 | 7 Mar | 26 Apr | ||||
| 99. | Northern Rough-winged Swallow | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (25 Apr) | 2 | 1 | 25 Apr | 25 Apr | ||||
| 100. | Swallow | 0 | 38 | 138 | 114 | 290 | 253 | 37 | 85 (1 May) | 43 | 26 | 7 Mar | 14 May | ||||
| 101. | Cliff Swallow | 0 | 0 | 4 | 12 | 16 | 15 | 1 | 12 (1 May) | 7 | 4 | 11 Apr | 1 May | ||||
| 102. | Starling | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (13 Apr) | 2 | 1 | 13 Apr | 13 Apr | ||||
| 103. | American Robin | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (10 Mar) | 2 | 1 | 10 Mar | 10 Mar | ||||
| 104. | American Buff-bellied Pipit | 0 | 3 | 0 | 0 | 3 | 3 | 0 | 1 (11 Mar) | 5 | 3 | 11 Mar | 18 Mar | ||||
| 105. | Red-winged Blackbird | 0 | 23 | 0 | 0 | 23 | 23 | 0 | 23 (12 Mar) | 2 | 1 | 12 Mar | 12 Mar | ||||
| 106. | Brown-headed Cowbird | 0 | 0 | 5 | 0 | 5 | 5 | 0 | 5 (13 Apr) | 2 | 1 | 13 Apr | 13 Apr | ||||
| 107. | Common Grackle | 0 | 2 | 28 | 0 | 30 | 28 | 2 | 12 (13 Apr) | 8 | 5 | 12 Mar | 26 Apr | ||||
| 108. | Indigo Bunting | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (21 Apr) | 2 | 1 | 21 Apr | 21 Apr | ||||
| Other species | |||||||||||||||||
| Species | Feb | Mar | Apr | May | Totals | W | E | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Humpback whale | 2 | 0 | 0 | 0 | 2 | 0 | 2 | 1 (4 Feb) | 3 | 2 | 4 Feb | 5 Feb | ||||
| 2. | whale sp. | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (8 Mar) | 2 | 1 | 8 Mar | 8 Mar | ||||
| Species | Feb | Mar | Apr | May | Totals | W | E | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 112537 | 82789 | 42681 | 2242 | 240249 | 10196 | 230053 | 100 | 61 | ||||||||
| Observation hours | 85:30 | 96:24 | 70:00 | 10:00 | 261:54 | ||||||||||||
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