| Year | |
| Period | |
| count-field | |
| Also present | |
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Canada Goose | 0 | 1235 | 205 | 1440 | 77 | 1363 | 293 (23 Apr) | 36 | 24 | 3 Apr | 10 May | ||||
| 2. | Lesser Canada Goose | 0 | 1 | 0 | 1 | 0 | 1 | 1 (28 Apr) | 1 | 1 | 28 Apr | 28 Apr | ||||
| 3. | Snow Goose | 0 | 6049 | 23073 | 29122 | 6885 | 22237 | 15237 (13 May) | 42 | 28 | 10 Apr | 19 May | ||||
| 4. | Mallard | 0 | 2 | 0 | 2 | 0 | 2 | 2 (14 Apr) | 1 | 1 | 14 Apr | 14 Apr | ||||
| 5. | Surf Scoter | 0 | 0 | 12 | 12 | 12 | 0 | 12 (29 May) | 1 | 1 | 29 May | 29 May | ||||
| 6. | White-winged Scoter | 0 | 0 | 11 | 11 | 10 | 1 | 8 (8 May) | 4 | 3 | 8 May | 29 May | ||||
| 7. | Black Scoter | 0 | 0 | 1 | 1 | 1 | 0 | 1 (8 May) | 1 | 1 | 8 May | 8 May | ||||
| 8. | Goosander | 0 | 6 | 7 | 13 | 6 | 7 | 7 (13 May) | 9 | 6 | 4 Apr | 13 May | ||||
| 9. | Red-breasted Merganser | 0 | 0 | 12 | 12 | 0 | 12 | 7 (15 May) | 3 | 2 | 3 May | 15 May | ||||
| 10. | Chimney Swift | 0 | 0 | 16 | 16 | 14 | 2 | 6 (30 May) | 9 | 6 | 20 May | 31 May | ||||
| 11. | Ruby-throated Hummingbird | 0 | 0 | 11 | 11 | 1 | 10 | 6 (23 May) | 7 | 5 | 15 May | 23 May | ||||
| 12. | Sandhill Crane | 0 | 4 | 17 | 21 | 19 | 2 | 7 (20 May) | 13 | 9 | 21 Apr | 30 May | ||||
| 13. | Killdeer | 0 | 12 | 1 | 13 | 3 | 10 | 3 (7 Apr) | 10 | 7 | 4 Apr | 11 May | ||||
| 14. | Lesser Yellowlegs | 0 | 0 | 2 | 2 | 2 | 0 | 2 (17 May) | 1 | 1 | 17 May | 17 May | ||||
| 15. | Greater Yellowlegs | 0 | 1 | 0 | 1 | 0 | 1 | 1 (30 Apr) | 1 | 1 | 30 Apr | 30 Apr | ||||
| 16. | Least Sandpiper | 0 | 0 | 2 | 2 | 2 | 0 | 1 (19 May) | 3 | 2 | 19 May | 20 May | ||||
| 17. | Kittiwake | 0 | 0 | 2 | 2 | 2 | 0 | 1 (8 May) | 3 | 2 | 8 May | 9 May | ||||
| 18. | Ring-billed Gull | 8 | 12 | 4 | 24 | 14 | 10 | 5 (26 Apr) | 16 | 11 | 16 Mar | 23 May | ||||
| 19. | Herring Gull | 107 | 1022 | 594 | 1723 | 661 | 1062 | 224 (4 May) | 76 | 51 | 16 Mar | 30 May | ||||
| 20. | Great Black-backed Gull | 85 | 440 | 65 | 590 | 126 | 464 | 78 (15 Apr) | 69 | 46 | 16 Mar | 29 May | ||||
| 21. | Glaucous Gull | 12 | 89 | 2 | 103 | 31 | 72 | 21 (16 Apr) | 34 | 23 | 20 Mar | 26 May | ||||
| 22. | Lesser Black-backed Gull | 0 | 31 | 32 | 63 | 8 | 55 | 28 (26 Apr) | 21 | 14 | 7 Apr | 29 May | ||||
| 23. | Iceland Gull | 66 | 216 | 73 | 355 | 167 | 188 | 61 (7 Apr) | 45 | 30 | 16 Mar | 27 May | ||||
| 24. | Red-throated Diver | 0 | 71 | 1051 | 1122 | 1078 | 44 | 580 (23 May) | 21 | 14 | 26 Apr | 29 May | ||||
| 25. | Great Northern Diver | 0 | 0 | 30 | 30 | 13 | 17 | 7 (8 May) | 16 | 11 | 2 May | 22 May | ||||
| 26. | Gannet | 0 | 16 | 7 | 23 | 0 | 23 | 16 (14 Apr) | 6 | 4 | 14 Apr | 14 May | ||||
| 27. | Double-crested Cormorant | 0 | 30 | 189 | 219 | 158 | 61 | 43 (14 May) | 27 | 18 | 5 Apr | 27 May | ||||
| 28. | Great Blue Heron | 0 | 13 | 3 | 16 | 0 | 16 | 9 (6 Apr) | 7 | 5 | 6 Apr | 18 May | ||||
| 29. | Turkey Vulture | 6 | 27 | 11 | 44 | 33 | 11 | 11 (30 Apr) | 28 | 19 | 16 Mar | 22 May | ||||
| 30. | Osprey | 0 | 4 | 19 | 23 | 7 | 16 | 3 (12 May) | 21 | 14 | 26 Apr | 31 May | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Golden Eagle | 29 | 50 | 30 | 109 | 101 | 8 | 10 (22 Mar) | 55 | 37 | 16 Mar | 30 May | ||||
| 32. | Sharp-shinned Hawk | 0 | 862 | 852 | 1714 | 743 | 971 | 174 (30 Apr) | 69 | 46 | 9 Apr | 31 May | ||||
| 33. | Cooper's Hawk | 0 | 5 | 1 | 6 | 3 | 3 | 3 (13 Apr) | 6 | 4 | 13 Apr | 22 May | ||||
| 34. | Accipiter sp. | 0 | 1 | 3 | 4 | 2 | 2 | 1 (19 Apr) | 6 | 4 | 19 Apr | 22 May | ||||
| 35. | American Goshawk | 4 | 34 | 11 | 49 | 27 | 22 | 8 (22 Apr) | 37 | 25 | 22 Mar | 23 May | ||||
| 36. | Northern Harrier | 0 | 78 | 46 | 124 | 54 | 70 | 19 (22 Apr) | 51 | 34 | 3 Apr | 31 May | ||||
| 37. | Bald Eagle | 18 | 186 | 149 | 353 | 272 | 81 | 29 (11 Apr) | 87 | 58 | 20 Mar | 31 May | ||||
| 38. | Red-shouldered Hawk | 1 | 5 | 1 | 7 | 4 | 3 | 2 (13 Apr) | 7 | 5 | 29 Mar | 2 May | ||||
| 39. | Broad-winged Hawk | 0 | 35 | 244 | 279 | 170 | 109 | 38 (22 May) | 42 | 28 | 24 Apr | 31 May | ||||
| 40. | Red-tailed Hawk | 2 | 1013 | 416 | 1431 | 1041 | 390 | 163 (22 Apr) | 75 | 50 | 29 Mar | 31 May | ||||
| 41. | Rough-legged Buzzard | 5 | 37 | 2 | 44 | 27 | 17 | 7 (26 Apr) | 28 | 19 | 18 Mar | 22 May | ||||
| 42. | buzzard sp. | 0 | 0 | 11 | 11 | 6 | 5 | 2 (8 May) | 12 | 8 | 8 May | 29 May | ||||
| 43. | Belted Kingfisher | 0 | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 1 | 1 | 27 Apr | 27 Apr | ||||
| 44. | Yellow-bellied Sapsucker | 0 | 3 | 0 | 3 | 0 | 3 | 1 (13 Apr) | 4 | 3 | 13 Apr | 22 Apr | ||||
| 45. | Black-backed Woodpecker | 0 | 0 | 1 | 1 | 1 | 0 | 1 (23 May) | 1 | 1 | 23 May | 23 May | ||||
| 46. | Northern Flicker | 0 | 23 | 0 | 23 | 2 | 21 | 14 (23 Apr) | 6 | 4 | 22 Apr | 26 Apr | ||||
| 47. | American Kestrel | 0 | 159 | 29 | 188 | 28 | 160 | 74 (22 Apr) | 48 | 32 | 9 Apr | 31 May | ||||
| 48. | falcon sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (10 Apr) | 1 | 1 | 10 Apr | 10 Apr | ||||
| 49. | Merlin | 2 | 15 | 14 | 31 | 14 | 17 | 8 (22 Apr) | 25 | 17 | 18 Mar | 31 May | ||||
| 50. | Peregrine | 0 | 5 | 6 | 11 | 5 | 6 | 3 (11 May) | 12 | 8 | 13 Apr | 20 May | ||||
| 51. | Eastern Phoebe | 0 | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 1 | 1 | 27 Apr | 27 Apr | ||||
| 52. | Eastern Kingbird | 0 | 0 | 2 | 2 | 0 | 2 | 2 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 53. | Philadelphia Vireo | 0 | 0 | 2 | 2 | 0 | 2 | 2 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 54. | Blue-headed Vireo | 0 | 0 | 2 | 2 | 0 | 2 | 2 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 55. | Blue Jay | 0 | 0 | 77 | 77 | 18 | 59 | 49 (20 May) | 10 | 7 | 12 May | 27 May | ||||
| 56. | American Crow | 0 | 4 | 3 | 7 | 3 | 4 | 4 (6 Apr) | 3 | 2 | 6 Apr | 5 May | ||||
| 57. | Raven | 38 | 146 | 82 | 266 | 203 | 63 | 28 (13 Apr) | 40 | 27 | 29 Mar | 29 May | ||||
| 58. | Waxwing | 0 | 18 | 5 | 23 | 4 | 19 | 13 (14 Apr) | 7 | 5 | 13 Apr | 17 May | ||||
| 59. | Cedar Waxwing | 0 | 0 | 52 | 52 | 26 | 26 | 21 (27 May) | 7 | 5 | 27 May | 31 May | ||||
| 60. | Boreal Chickadee | 0 | 2 | 0 | 2 | 0 | 2 | 2 (28 Apr) | 1 | 1 | 28 Apr | 28 Apr | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Shore Lark | 0 | 321 | 492 | 813 | 382 | 431 | 314 (8 May) | 21 | 14 | 26 Apr | 23 May | ||||
| 62. | Sand Martin | 0 | 0 | 36 | 36 | 34 | 2 | 13 (30 May) | 10 | 7 | 12 May | 31 May | ||||
| 63. | Tree Swallow | 0 | 29 | 38 | 67 | 25 | 42 | 20 (20 May) | 15 | 10 | 22 Apr | 30 May | ||||
| 64. | Swallow | 0 | 1 | 25 | 26 | 18 | 8 | 5 (28 May) | 15 | 10 | 22 Apr | 31 May | ||||
| 65. | Cliff Swallow | 0 | 0 | 7 | 7 | 5 | 2 | 2 (19 May) | 6 | 4 | 19 May | 28 May | ||||
| 66. | Ruby-crowned Kinglet | 0 | 14 | 10 | 24 | 14 | 10 | 14 (30 Apr) | 3 | 2 | 30 Apr | 20 May | ||||
| 67. | Golden-crowned Kinglet | 0 | 7 | 0 | 7 | 7 | 0 | 7 (30 Apr) | 1 | 1 | 30 Apr | 30 Apr | ||||
| 68. | Red-breasted Nuthatch | 0 | 3 | 4 | 7 | 3 | 4 | 4 (20 May) | 3 | 2 | 30 Apr | 20 May | ||||
| 69. | Brown Creeper | 0 | 2 | 0 | 2 | 2 | 0 | 2 (30 Apr) | 1 | 1 | 30 Apr | 30 Apr | ||||
| 70. | Starling | 0 | 6 | 0 | 6 | 3 | 3 | 3 (11 Apr) | 3 | 2 | 11 Apr | 24 Apr | ||||
| 71. | Eastern Bluebird | 0 | 1 | 4 | 5 | 0 | 5 | 4 (20 May) | 3 | 2 | 21 Apr | 20 May | ||||
| 72. | American Robin | 0 | 161 | 15 | 176 | 31 | 145 | 47 (22 Apr) | 19 | 13 | 11 Apr | 20 May | ||||
| 73. | American Buff-bellied Pipit | 0 | 0 | 40 | 40 | 0 | 40 | 29 (11 May) | 13 | 9 | 9 May | 26 May | ||||
| 74. | finch sp. | 0 | 16 | 0 | 16 | 0 | 16 | 16 (15 Apr) | 1 | 1 | 15 Apr | 15 Apr | ||||
| 75. | Evening Grosbeak | 0 | 9 | 394 | 403 | 183 | 220 | 104 (10 May) | 33 | 22 | 29 Apr | 31 May | ||||
| 76. | Pine Grosbeak | 49 | 138 | 47 | 234 | 103 | 131 | 60 (11 Apr) | 31 | 21 | 16 Mar | 19 May | ||||
| 77. | Purple Finch | 0 | 31 | 146 | 177 | 51 | 126 | 33 (10 May) | 34 | 23 | 15 Apr | 23 May | ||||
| 78. | House Finch | 0 | 2 | 0 | 2 | 0 | 2 | 2 (8 Apr) | 1 | 1 | 8 Apr | 8 Apr | ||||
| 79. | Mealy Redpoll | 12 | 546 | 19 | 577 | 380 | 197 | 216 (23 Apr) | 34 | 23 | 16 Mar | 16 May | ||||
| 80. | Two-barred Crossbill | 2 | 6 | 5 | 13 | 7 | 6 | 4 (12 Apr) | 10 | 7 | 24 Mar | 16 May | ||||
| 81. | American Goldfinch | 0 | 4 | 34 | 38 | 19 | 19 | 10 (20 May) | 19 | 13 | 11 Apr | 20 May | ||||
| 82. | Pine Siskin | 11 | 156 | 277 | 444 | 255 | 189 | 62 (29 Apr) | 57 | 38 | 25 Mar | 28 May | ||||
| 83. | Lapland Bunting | 0 | 1 | 1 | 2 | 1 | 1 | 1 (23 Apr) | 3 | 2 | 23 Apr | 12 May | ||||
| 84. | Snow Bunting | 26 | 5050 | 0 | 5076 | 4455 | 621 | 2605 (20 Apr) | 21 | 14 | 16 Mar | 26 Apr | ||||
| 85. | Chipping Sparrow | 0 | 3 | 7 | 10 | 2 | 8 | 6 (20 May) | 7 | 5 | 27 Apr | 20 May | ||||
| 86. | Dark-eyed Junco | 0 | 101 | 2 | 103 | 5 | 98 | 60 (23 Apr) | 7 | 5 | 13 Apr | 12 May | ||||
| 87. | White-throated Sparrow | 0 | 0 | 92 | 92 | 0 | 92 | 92 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 88. | Savannah Sparrow | 0 | 1 | 1 | 2 | 0 | 2 | 1 (22 Apr) | 3 | 2 | 22 Apr | 11 May | ||||
| 89. | Bobolink | 0 | 0 | 4 | 4 | 2 | 2 | 2 (19 May) | 4 | 3 | 19 May | 23 May | ||||
| 90. | Red-winged Blackbird | 0 | 0 | 10 | 10 | 3 | 7 | 6 (19 May) | 4 | 3 | 12 May | 20 May | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Brown-headed Cowbird | 0 | 2 | 0 | 2 | 0 | 2 | 2 (24 Apr) | 1 | 1 | 24 Apr | 24 Apr | ||||
| 92. | Rusty Blackbird | 0 | 2 | 14 | 16 | 0 | 16 | 10 (12 May) | 6 | 4 | 30 Apr | 17 May | ||||
| 93. | blackbird sp. | 0 | 0 | 3 | 3 | 0 | 3 | 3 (19 May) | 1 | 1 | 19 May | 19 May | ||||
| 94. | Common Grackle | 0 | 29 | 3 | 32 | 5 | 27 | 10 (13 Apr) | 9 | 6 | 11 Apr | 7 May | ||||
| 95. | Black-and-white Warbler | 0 | 0 | 4 | 4 | 0 | 4 | 3 (20 May) | 3 | 2 | 19 May | 20 May | ||||
| 96. | Tennessee Warbler | 0 | 0 | 22 | 22 | 0 | 22 | 10 (20 May) | 4 | 3 | 19 May | 23 May | ||||
| 97. | Nashville Warbler | 0 | 0 | 1 | 1 | 0 | 1 | 1 (19 May) | 1 | 1 | 19 May | 19 May | ||||
| 98. | American Redstart | 0 | 0 | 2 | 2 | 0 | 2 | 1 (19 May) | 3 | 2 | 19 May | 20 May | ||||
| 99. | Cape May Warbler | 0 | 0 | 123 | 123 | 9 | 114 | 64 (19 May) | 9 | 6 | 12 May | 30 May | ||||
| 100. | Northern Parula | 0 | 0 | 3 | 3 | 0 | 3 | 3 (19 May) | 1 | 1 | 19 May | 19 May | ||||
| 101. | Magnolia Warbler | 0 | 0 | 4 | 4 | 0 | 4 | 4 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 102. | Bay-breasted Warbler | 0 | 0 | 5 | 5 | 0 | 5 | 5 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 103. | American Yellow Warbler | 0 | 0 | 1 | 1 | 0 | 1 | 1 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 104. | Black-throated Blue Warbler | 0 | 0 | 1 | 1 | 0 | 1 | 1 (19 May) | 1 | 1 | 19 May | 19 May | ||||
| 105. | Palm Warbler | 0 | 0 | 1 | 1 | 0 | 1 | 1 (20 May) | 1 | 1 | 20 May | 20 May | ||||
| 106. | Myrtle Warbler | 0 | 9 | 528 | 537 | 16 | 521 | 528 (20 May) | 9 | 6 | 22 Apr | 20 May | ||||
| 107. | Yellow-rumped Warbler (Myrtle) | 0 | 0 | 447 | 447 | 31 | 416 | 338 (19 May) | 18 | 12 | 4 May | 25 May | ||||
| 108. | Black-throated Green Warbler | 0 | 0 | 6 | 6 | 1 | 5 | 5 (20 May) | 3 | 2 | 19 May | 20 May | ||||
| 109. | Rose-breasted Grosbeak | 0 | 0 | 1 | 1 | 0 | 1 | 1 (19 May) | 1 | 1 | 19 May | 19 May | ||||
| 110. | passerine sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (23 Apr) | 1 | 1 | 23 Apr | 23 Apr | ||||
| 111. | warbler sp. | 0 | 0 | 6346 | 6346 | 5 | 6341 | 6113 (20 May) | 7 | 5 | 11 May | 20 May | ||||
| Other species | ||||||||||||||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Eastern Tiger Swallowtail | 0 | 0 | 4 | 4 | 0 | 4 | 3 (30 May) | 3 | 2 | 30 May | 31 May | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 483 | 18617 | 36722 | 55822 | 18141 | 37681 | 100 | 67 | ||||||||
| Observation hours | 47:00 | 153:15 | 161:14 | 361:29 | ||||||||||||
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