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| Species | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Total No squares surveyed | 122 | 121 | 116 | 138 | 192 | 223 | 213 | 22 | 215 | 214 | 253 | 270 | 267 | 263 |
| Mute Swan | 7 | 9 | 9 | 23 | 42 | 29 | 48 | 8 | 39 | 34 | 46 | 37 | 27 | 22 |
| Pink-footed Goose | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . |
| Greylag Goose | 8 | 2 | 5 | 8 | 5 | 18 | 18 | . | 31 | 21 | 17 | 19 | 57 | 32 |
| Feral/hybrid Goose | . | . | . | 1 | . | . | . | . | . | . | 9 | . | 1 | . |
| Canada Goose | 10 | 18 | 31 | 20 | 55 | 50 | 89 | 4 | 94 | 104 | 164 | 189 | 226 | 162 |
| Brent Goose | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . |
| Shelduck | 224 | 32 | 30 | 61 | 47 | 72 | 84 | . | 41 | 37 | 50 | 47 | 120 | 36 |
| Mandarin | . | 1 | . | . | 6 | 5 | 9 | . | 1 | . | 2 | . | 1 | . |
| Wigeon | . | 3 | . | 6 | . | . | 3 | . | 1 | . | . | . | . | . |
| Gadwall | . | . | . | . | 2 | 1 | 1 | . | 2 | . | . | . | . | 2 |
| Teal | 1 | 3 | 2 | . | 5 | 1 | 8 | . | 4 | 2 | 5 | 8 | 8 | 9 |
| Mallard | 175 | 258 | 213 | 202 | 249 | 269 | 256 | 54 | 360 | 277 | 439 | 433 | 498 | 377 |
| Feral/hybrid mallard type | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 3 |
| Pintail | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . |
| Shoveler | 1 | . | . | . | . | . | . | . | . | 1 | . | 2 | 7 | 4 |
| Red-crested Pochard | . | . | . | . | 1 | . | 2 | . | . | . | . | . | . | . |
| Pochard | . | . | . | . | . | . | 3 | . | 2 | 1 | . | 2 | . | 1 |
| Tufted Duck | 17 | 21 | 17 | 17 | 24 | 28 | 22 | . | 15 | 17 | 26 | 29 | 21 | 14 |
| Eider | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 |
| Common Scoter | . | . | 26 | . | . | . | . | . | . | . | . | . | . | . |
| Goldeneye | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . |
| Red-breasted Merganser | 1 | 1 | . | 2 | 4 | 3 | 2 | . | 1 | . | 1 | 2 | 2 | 1 |
| Goosander | 12 | 7 | 4 | 8 | 20 | 5 | 29 | 5 | 8 | 12 | 19 | 18 | 8 | 11 |
| Ruddy Duck | . | . | . | . | 12 | 9 | 3 | . | 3 | 13 | 5 | 4 | 2 | . |
| Red Grouse | 3 | . | 3 | 1 | 9 | 13 | 8 | 1 | 15 | 12 | 5 | 6 | 6 | 8 |
| Black Grouse | . | . | . | . | . | 1 | 4 | . | 27 | . | 2 | . | 2 | . |
| Red-legged Partridge | . | . | . | 3 | 2 | 1 | 24 | 2 | 2 | 8 | 11 | 27 | 7 | 26 |
| Grey Partridge | 2 | 4 | 1 | 1 | 2 | 3 | 2 | . | 4 | 12 | 2 | 5 | 9 | 6 |
| Quail | . | . | . | . | 1 | . | . | . | . | . | 2 | . | . | . |
| Pheasant | 214 | 189 | 183 | 179 | 214 | 224 | 295 | 4 | 240 | 399 | 472 | 501 | 447 | 519 |
| Golden Pheasant | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . |
| Little Grebe | 2 | 2 | . | 2 | 8 | 10 | 6 | . | 4 | 12 | 10 | 10 | 9 | 13 |
| Great Crested Grebe | 4 | 3 | 1 | 2 | 5 | 12 | 9 | . | 18 | 3 | 2 | 17 | 11 | 10 |
| Fulmar | 17 | 43 | 11 | 35 | 36 | 20 | 8 | . | 66 | 72 | 98 | 60 | 63 | 77 |
| Manx Shearwater | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . |
| Gannet | . | 4 | 1 | 12 | 1 | 14 | 1 | . | 7 | 5 | 5 | 6 | 18 | 4 |
| Cormorant | 9 | 27 | 32 | 20 | 64 | 79 | 41 | 8 | 77 | 28 | 45 | 56 | 43 | 35 |
| Shag | 3 | 1 | 3 | 1 | 1 | 3 | . | . | 7 | 1 | 9 | 5 | 8 | 7 |
| Little Egret | . | . | . | . | 1 | . | . | . | 5 | 4 | 7 | 7 | 6 | 1 |
| Grey Heron | 32 | 45 | 41 | 48 | 73 | 92 | 88 | 3 | 83 | 91 | 89 | 105 | 71 | 88 |
| Honey Buzzard | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . |
| Red Kite | 13 | 14 | 8 | 7 | 9 | 19 | 15 | 1 | 23 | 23 | 33 | 45 | 59 | 46 |
| Marsh Harrier | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . |
| Hen Harrier | 2 | 1 | 1 | 2 | . | 1 | 1 | . | 3 | 5 | 4 | 2 | 5 | 1 |
| Goshawk | . | 1 | 1 | 2 | 3 | 5 | 7 | 2 | 5 | 8 | 4 | 4 | 4 | 10 |
| Sparrowhawk | 12 | 10 | 13 | 13 | 35 | 21 | 22 | . | 26 | 28 | 21 | 26 | 29 | 34 |
| Buzzard | 176 | 178 | 164 | 176 | 248 | 291 | 293 | 21 | 324 | 324 | 334 | 399 | 358 | 362 |
| Osprey | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . |
| Kestrel | 23 | 23 | 18 | 21 | 28 | 33 | 25 | . | 30 | 26 | 30 | 43 | 35 | 38 |
| Merlin | 1 | . | . | 2 | 1 | . | 4 | . | 4 | 3 | 1 | . | 1 | . |
| Hobby | 1 | 1 | . | 1 | 2 | 1 | . | . | 4 | 1 | . | 1 | 1 | 3 |
| Peregrine | 12 | 6 | 10 | 3 | 13 | 9 | 8 | . | 6 | 4 | 15 | 24 | 8 | 9 |
| Water Rail | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 3 |
| Spotted Crake | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . |
| Moorhen | 17 | 17 | 23 | 24 | 44 | 70 | 32 | 2 | 34 | 31 | 60 | 48 | 39 | 74 |
| Coot | 18 | 12 | 8 | 11 | 35 | 91 | 43 | . | 45 | 32 | 50 | 75 | 51 |