|
|
|
| Species | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Total No squares surveyed | 1569 | 1747 | 1920 | 2195 | 2311 | 2395 | 2301 | 638 | 2205 | 2326 | 2530 | 2889 | 3287 | 3604 |
| Mute Swan | 115 | 128 | 150 | 172 | 194 | 219 | 214 | 69 | 204 | 225 | 259 | 278 | 318 | 335 |
| Whooper Swan | . | 3 | . | . | 3 | 4 | 1 | . | 1 | 7 | 3 | 1 | 4 | 4 |
| Pink-footed Goose | 3 | 1 | 4 | 7 | 4 | 5 | 7 | . | 6 | 7 | 9 | 7 | 6 | 5 |
| White-fronted Goose | . | . | 1 | 1 | . | 1 | 1 | . | 2 | . | 1 | 1 | 1 | 1 |
| Greylag Goose | 50 | 64 | 75 | 85 | 99 | 102 | 109 | 20 | 120 | 156 | 152 | 194 | 249 | 292 |
| Feral/hybrid Goose | . | . | . | 1 | 2 | 2 | 6 | 2 | 4 | 1 | 16 | 15 | 20 | 18 |
| Snow Goose | 1 | . | 1 | 1 | 2 | 1 | 3 | . | 1 | . | . | . | . | 1 |
| Canada Goose | 185 | 228 | 261 | 298 | 324 | 367 | 400 | 97 | 407 | 413 | 487 | 532 | 635 | 693 |
| Barnacle Goose | 2 | 4 | 5 | 6 | 5 | 4 | 2 | . | 2 | 4 | 9 | 4 | 9 | 11 |
| Brent Goose | 1 | 1 | 5 | 1 | 1 | 1 | 1 | . | 4 | 2 | 3 | 3 | 7 | 6 |
| Black Brant | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . |
| Red-breasted Goose | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . |
| Egyptian Goose | 2 | 2 | . | 4 | 7 | 6 | 8 | 1 | 7 | 10 | 15 | 20 | 19 | 26 |
| Ruddy Shelduck | . | . | 1 | . | 2 | . | 1 | . | . | 1 | 1 | . | 2 | 2 |
| Shelduck | 85 | 96 | 109 | 127 | 138 | 128 | 132 | 31 | 117 | 129 | 137 | 153 | 191 | 187 |
| Mandarin | 5 | 8 | 3 | 10 | 8 | 18 | 17 | 6 | 20 | 23 | 25 | 17 | 39 | 35 |
| Wigeon | 5 | 7 | 3 | 10 | 4 | 2 | 9 | 1 | 5 | 7 | 13 | 6 | 8 | 13 |
| Gadwall | 17 | 16 | 18 | 19 | 32 | 29 | 35 | 17 | 23 | 29 | 38 | 42 | 44 | 56 |
| Teal | 13 | 25 | 27 | 19 | 20 | 19 | 22 | 4 | 19 | 37 | 31 | 30 | 38 | 28 |
| Mallard | 663 | 751 | 850 | 949 | 1038 | 1151 | 1116 | 275 | 1077 | 1119 | 1241 | 1429 | 1630 | 1737 |
| Feral/hybrid mallard type | . | . | . | 2 | . | 3 | 3 | 2 | 8 | 10 | 21 | 22 | 29 | 39 |
| Pintail | . | 1 | 3 | 2 | . | 2 | 1 | . | . | 1 | . | . | 2 | 3 |
| Garganey | . | . | 1 | . | 1 | 3 | 3 | . | . | 3 | . | 2 | 3 | . |
| Shoveler | 9 | 11 | 9 | 9 | 11 | 15 | 16 | 3 | 9 | 14 | 18 | 19 | 19 | 17 |
| Red-crested Pochard | . | 1 | . | 1 | 1 | . | 1 | . | 3 | 3 | 1 | . | 1 | . |
| Pochard | 11 | 10 | 11 | 18 | 13 | 12 | 16 | 6 | 9 | 15 | 19 | 25 | 19 | 24 |
| Ring-necked Duck | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . |
| Tufted Duck | 97 | 94 | 115 | 128 | 135 | 149 | 154 | 50 | 128 | 121 | 135 | 162 | 185 | 184 |
| Scaup | . | . | 1 | 1 | 1 | . | 2 | . | . | 2 | . | . | 1 | . |
| Eider | 7 | 9 | 6 | 8 | 6 | 6 | 10 | 3 | 10 | 6 | 10 | 12 | 17 | 20 |
| Long-tailed Duck | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . |
| Common Scoter | 1 | 2 | 1 | 1 | . | . | . | . | . | . | . | 2 | . | 2 |
| Goldeneye | 5 | 7 | 2 | 2 | 3 | 2 | 7 | 2 | 6 | 4 | 3 | 5 | 7 | 8 |
| Red-breasted Merganser | 7 | 7 | 10 | 11 | 15 | 15 | 13 | 4 | 10 | 12 | 14 | 11 | 16 | 13 |
| Goosander | 20 | 31 | 32 | 32 | 46 | 31 | 33 | 3 | 32 | 41 | 36 | 36 | 53 | 41 |
| Ruddy Duck | 5 | 4 | 8 | 6 | 10 | 8 | 9 | 4 | 10 | 11 | 16 | 19 | 13 | 14 |
| Red Grouse | 83 | 92 | 103 | 118 | 128 | 113 | 97 | 18 | 91 | 98 | 113 | 112 | 117 | 145 |
| Ptarmigan | 2 | 1 | 3 | 2 | 2 | 3 | 2 | . | 2 | 1 | . | . | 1 | 4 |
| Black Grouse | 5 | 13 | 9 | 14 | 9 | 10 | 9 | 1 | 8 | 4 | 10 | 7 | 16 | 18 |
| Capercaillie | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . |
| Red-legged Partridge | 262 | 306 | 369 | 418 | 433 | 443 | 416 | 120 | 423 | 450 | 584 | 623 | 699 | 794 |
| Grey Partridge | 183 | 199 | 268 | 292 | 239 | 186 | 204 | 36 | 196 | 180 | 209 | 249 | 291 | 302 |
| Quail | 11 | 17 | 6 | 28 | 28 | 16 | 9 | 3 | 10 | 7 | 13 | 21 | 9 | 10 |
| Pheasant | 903 | 1014 | 1138 | 1318 | 1399 | 1483 | 1469 | 330 | 1416 | 1533 | 1706 | 1986 | 2292 | 2546 |
| Golden Pheasant | 1 | 4 | 4 | . | 1 | . | 3 | . | . | 1 | 4 | 3 | 4 | . |
| Lady Amhersts Pheasant | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . |
| Red-throated Diver | 13 | 11 | 14 | 17 | 14 | 12 | 13 | 6 | 13 | 13 | 12 | 15 | 14 | 10 |
| Black-throated Diver | 1 | 1 | 1 | 4 | 4 | 5 | 2 | 1 | 3 | 1 | 4 | 5 | 3 | 6 |
| Great Northern Diver | 1 | . | 1 | 1 | 1 | 3 | 2 | . | 1 | 1 | 1 | 3 | 4 | 2 |
| Little Grebe | 28 | 37 | 42 | 50 | 50 | 58 | 63 | 22 | 69 | 66 | 66 | 92 | 95 | 82 |
| Great Crested Grebe | 43 | 53 | 46 | 57 | 67 | 59 | 64 | 25 | 61 | 58 | 73 | 84 | 79 | 94 |
| Black-necked Grebe | . | . | . | 2 | . | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Fulmar | 18 | 19 | 17 | 21 | 24 | 20 | 21 | 3 | 27 | 16 | 25 | 27 | 32 | 22 |
| Manx Shearwater | . | . | 1 | . | 1 | 1 | . | . | 1 | 1 | . | . | . | . |
| Gannet | 4 | 8 | 5 | 5 | 7 | 8 | 3 | 3 | 9 | 6 | 15 | 14 | 19 | 17 |
| Cormorant | 81 | 114 | 115 | 132 | 164 | 190 | 210 | 67 | 206 | 207 | 270 | 284 | 331 | 345 |