Totals North Cambridge (nocturnal flight calls) 2011 - 2020
| Species | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | Totals | Average | Present | Year Maximum | |
1. | Dark-bellied Brent Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 1.7 | 0 | 5 (2020) | | | | |
2. | Canada Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 1 | 0 | 17 | 5.7 | 0 | 16 (2018) | | | | |
3. | Barnacle Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 10 | 3.3 | 0 | 10 (2019) | | | | |
4. | Greylag Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 25 | 36 | 12 | 0 | 25 (2020) | | | | |
5. | goose sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2020) | | | | |
6. | Pink-footed Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 10 | 25 | 8.3 | 0 | 15 (2018) | | | | |
7. | Whooper Swan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 1 | 0 | 3 (2019) | | | | |
8. | swan sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.3 | 0 | 1 (2018) | | | | |
9. | Shelduck | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2019) | | | | |
10. | Gadwall | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 5 | 1.7 | 0 | 2 (2019) | | | | |
11. | Wigeon | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 105 | 4 | 55 | 164 | 55 | 0 | 105 (2018) | | | | |
12. | Mallard | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 14 | 23 | 7.7 | 0 | 14 (2020) | | | | |
13. | Teal | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 3 | 23 | 40 | 13.3 | 0 | 23 (2020) | | | | |
14. | duck sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 48 | 17 | 21 | 86 | 28.7 | 0 | 48 (2018) | | | | |
15. | Common Scoter | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 5 | 13 | 41 | 13.7 | 0 | 23 (2018) | | | | |
16. | Quail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2019) | | | | |
17. | Cuckoo | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2020) | | | | |
18. | Water Rail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 6 | 12 | 4 | 0 | 6 (2020) | | | | |
19. | Moorhen | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 53 | 43 | 55 | 151 | 50 | 0 | 55 (2020) | | | | |
20. | Coot | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 27 | 17 | 55 | 18.3 | 0 | 27 (2019) | | | | |
21. | Little Grebe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 5 | 14 | 4.7 | 0 | 8 (2019) | | | | |
22. | Stone Curlew | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0.7 | 0 | 1 (2018) | | | | |
23. | Oystercatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 11 | 12 | 37 | 12.3 | 0 | 14 (2018) | | | | |
24. | Avocet | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 4 | 1.3 | 0 | 2 (2018) | | | | |
25. | Lapwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 5 | 11 | 3.7 | 0 | 5 (2020) | | | | |
26. | Golden Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 20 | 12 | 57 | 19 | 0 | 25 (2018) | | | | |
27. | Grey Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 1.3 | 0 | 4 (2020) | | | | |
28. | Ringed Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 8 | 4 | 21 | 7 | 0 | 9 (2018) | | | | |
29. | Little Ringed Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 | 6 | 16 | 5.3 | 0 | 8 (2019) | | | | |
30. | Whimbrel | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 35 | 15 | 73 | 24.3 | 0 | 35 (2019) | | | | |
31. | Curlew | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 7 | 12 | 4 | 0 | 7 (2020) | | | | |
32. | Bar-tailed Godwit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0.7 | 0 | 1 (2019) | | | | |
33. | Black-tailed Godwit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 3 | 1 | 16 | 5.3 | 0 | 12 (2018) | | | | |
34. | Turnstone | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 4 | 1.3 | 0 | 3 (2020) | | | | |
35. | Knot | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2020) | | | | |
36. | wader sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 9 | 4 | 15 | 5 | 0 | 9 (2019) | | | | |
37. | Dunlin | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 31 | 19 | 106 | 35 | 0 | 56 (2018) | | | | |
38. | Snipe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 17 | 7 | 35 | 11.7 | 0 | 17 (2019) | | | | |
39. | Common Sandpiper | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 25 | 13 | 51 | 17 | 0 | 25 (2019) | | | | |
40. | Green Sandpiper | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 6 | 5 | 16 | 5.3 | 0 | 6 (2019) | | | | |
41. | Redshank | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 7 | 4 | 20 | 6.7 | 0 | 9 (2018) | | | | |
42. | Wood Sandpiper | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2019) | | | | |
43. | Black-headed Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 8 | 12 | 40 | 13.3 | 0 | 20 (2018) | | | | |
44. | Common Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4 | 5 | 1.7 | 0 | 4 (2020) | | | | |
45. | large gull sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 14 | 9 | 27 | 9 | 0 | 14 (2019) | | | | |
46. | Sandwich Tern | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | 3 | 10 | 3.3 | 0 | 5 (2018) | | | | |
47. | Common Tern | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 1 | 6 | 2 | 0 | 3 (2018) | | | | |
48. | sterna sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0.7 | 0 | 2 (2018) | | | | |
49. | Bittern | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0.7 | 0 | 1 (2018) | | | | |
50. | Grey Heron | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 1 | 19 | 36 | 12 | 0 | 19 (2020) | | | | |
| Species | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | Totals | Average | Present | Year Maximum | |
51. | Little Egret | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2020) | | | | |
52. | Barn Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 4 | 10 | 21 | 7 | 0 | 10 (2020) | | | | |
53. | Tawny Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0.7 | 1 | 1 (2019) | | | | |
54. | Magpie | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 1 | 0 | 6 | 2 | 2 | 5 (2018) | | | | |
55. | Jackdaw | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 2 | 11 | 3.7 | 0 | 9 (2018) | | | | |
56. | Skylark | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 5 | 3 | 15 | 5 | 0 | 7 (2018) | | | | |
57. | House Martin | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2020) | | | | |
58. | Blackcap | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 5 | 1.7 | 2 | 3 (2018) | | | | |
59. | Lesser Whitethroat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3 | 1 | 0 | 2 (2019) | | | | |
60. | Whitethroat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2020) | | | | |
61. | Goldcrest | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 3 | 1 | 0 | 2 (2018) | | | | |
62. | Starling | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 3 | 1 | 0 | 2 (2019) | | | | |
63. | Song Thrush | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 626 | 639 | 389 | 1654 | 551 | 0 | 639 (2019) | | | | |
64. | Redwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2613 | 2467 | 3216 | 8296 | 2765 | 0 | 3216 (2020) | | | | |
65. | Blackbird | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 230 | 425 | 463 | 1118 | 373 | 0 | 463 (2020) | | | | |
66. | Fieldfare | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 35 | 78 | 41 | 154 | 51 | 0 | 78 (2019) | | | | |
67. | Ring Ouzel | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 | 1 | 9 | 3 | 0 | 6 (2019) | | | | |
68. | Spotted Flycatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 4 | 1.3 | 0 | 3 (2020) | | | | |
69. | Robin | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 12 | 6 | 23 | 7.7 | 0 | 12 (2019) | | | | |
70. | Pied Flycatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2019) | | | | |
71. | Meadow Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 7 | 3 | 14 | 4.7 | 0 | 7 (2019) | | | | |
72. | Tree Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 11 | 5 | 19 | 6.3 | 0 | 11 (2019) | | | | |
73. | Chaffinch | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 3 | 1 | 0 | 2 (2020) | | | | |
74. | Brambling | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 4 | 1.3 | 0 | 3 (2018) | | | | |
75. | finch sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2019) | | | | |
76. | Chaffinch/Brambling | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2019) | | | | |
77. | Lesser Redpoll | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0.7 | 0 | 1 (2018) | | | | |
78. | Ortolan Bunting | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0.7 | 0 | 2 (2018) | | | | |
79. | Reed Bunting | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | 0 | 7 | 2.3 | 0 | 5 (2018) | | | | |
80. | Species unidentified | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 94 | 86 | 142 | 322 | 107 | 1 | 142 (2020) | | | | |
81. | passerine sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 1 | 7 | 2.3 | 0 | 6 (2019) | | | | |
| Species | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | Totals | Average | Present | Year Maximum | |
|
Totals |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 4207 | 4107 | 4724 | 13038 | 4346 | 6 | | |
|
Observation hours |
| | | | | | | 1,225:58 | 1,122:44 | 1,103:41 | 3,452:23 | 1,150:48 | | | |