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| Species | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Total No squares surveyed | 83 | 87 | 105 | 131 | 137 | 142 | 133 | 21 | 125 | 133 | 148 | 170 | 191 | 222 |
| Mute Swan | 4 | 6 | 8 | 13 | 9 | 12 | 10 | 4 | 3 | 4 | 10 | 10 | 11 | 12 |
| Pink-footed Goose | . | . | . | 1 | 1 | . | . | . | . | . | . | 1 | . | . |
| Greylag Goose | 6 | 5 | 2 | 11 | 10 | 13 | 12 | 2 | 19 | 22 | 22 | 29 | 34 | 48 |
| Feral/hybrid Goose | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 1 |
| Canada Goose | 7 | 10 | 12 | 14 | 16 | 15 | 18 | 3 | 16 | 19 | 18 | 28 | 36 | 38 |
| Barnacle Goose | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . |
| Shelduck | 2 | 2 | 4 | 6 | 7 | 7 | 9 | . | 7 | 8 | 10 | 9 | 15 | 12 |
| Mandarin | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 |
| Wigeon | 2 | 1 | 1 | . | . | . | 1 | . | 1 | . | 2 | 1 | . | . |
| Gadwall | 2 | . | 1 | . | 4 | 2 | 2 | 2 | . | 2 | 3 | . | 1 | 1 |
| Teal | 2 | 1 | 1 | 2 | 2 | . | 1 | 1 | . | . | 1 | 1 | 2 | 1 |
| Mallard | 31 | 31 | 42 | 63 | 66 | 81 | 78 | 12 | 68 | 69 | 81 | 82 | 104 | 115 |
| Feral/hybrid mallard type | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 |
| Pintail | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . |
| Garganey | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . |
| Shoveler | . | 1 | . | 2 | 2 | 1 | 2 | . | . | . | 1 | 1 | . | . |
| Pochard | . | . | 1 | 2 | 1 | . | 1 | 1 | . | . | 1 | 1 | 1 | 1 |
| Tufted Duck | 4 | 5 | 9 | 8 | 7 | 12 | 6 | 2 | 3 | 4 | 6 | 7 | 8 | 10 |
| Scaup | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . |
| Goldeneye | . | . | . | 1 | 1 | . | 1 | . | . | . | 1 | 1 | . | . |
| Goosander | 1 | 4 | 4 | 4 | 5 | 4 | 4 | 1 | 3 | 3 | 4 | 1 | 7 | 5 |
| Ruddy Duck | . | 1 | 1 | 2 | 2 | . | 1 | 1 | . | . | . | . | 1 | . |
| Red Grouse | 17 | 17 | 16 | 19 | 21 | 18 | 20 | 1 | 24 | 28 | 31 | 30 | 40 | 39 |
| Black Grouse | . | . | . | . | . | . | . | . | 2 | . | 1 | . | 1 | 2 |
| Red-legged Partridge | 18 | 18 | 25 | 41 | 39 | 41 | 35 | 5 | 31 | 34 | 44 | 46 | 55 | 64 |
| Grey Partridge | 18 | 17 | 24 | 37 | 24 | 25 | 22 | 2 | 21 | 27 | 30 | 22 | 38 | 44 |
| Quail | . | . | 1 | 1 | 1 | 2 | 1 | . | 1 | 2 | 1 | . | . | . |
| Pheasant | 48 | 55 | 60 | 85 | 89 | 97 | 89 | 9 | 73 | 95 | 113 | 133 | 151 | 171 |
| Little Grebe | 1 | 3 | 1 | 4 | 4 | 4 | 3 | 1 | 1 | . | . | 2 | 3 | 3 |
| Great Crested Grebe | 1 | 2 | 1 | 3 | 3 | 3 | 3 | 1 | . | 1 | 3 | 2 | 2 | 3 |
| Black-necked Grebe | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . |
| Fulmar | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | 1 | . |
| Gannet | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | 1 | 1 |
| Cormorant | 2 | 2 | 4 | 7 | 5 | 6 | 9 | 2 | 7 | 8 | 13 | 11 | 11 | 14 |
| Bittern | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . |
| Grey Heron | 8 | 13 | 17 | 22 | 24 | 27 | 25 | 6 | 34 | 33 | 37 | 40 | 51 | 43 |
| Spoonbill | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . |
| Red Kite | . | . | . | . | . | . | 1 | . | . | 2 | 3 | 1 | 6 | 6 |
| Marsh Harrier | . | 1 | . | . | . | 2 | 2 | . | 1 | 3 | 2 | 4 | 3 | 1 |
| Hen Harrier | . | . | . | . | 1 | . | . | . | . | . | 1 | . | . | . |
| Goshawk | 2 | 1 | 1 | 1 | 1 | . | . | . | 1 | 1 | 1 | 2 | 1 | 3 |
| Sparrowhawk | 10 | 4 | 11 | 16 | 15 | 15 | 15 | 5 | 16 | 11 | 19 | 23 | 30 | 17 |
| Buzzard | 1 | . | 2 | 4 | 6 | 3 | 4 | . | 3 | 11 | 5 | 10 | 18 | 15 |
| Osprey | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . |
| Kestrel | 29 | 26 | 27 | 41 | 39 | 35 | 36 | 9 | 35 | 43 | 39 | 47 | 56 | 64 |
| Merlin | 3 | 3 | 3 | 4 | 2 | 1 | 3 | . | 3 | 2 | 1 | 2 | 5 | 2 |
| Hobby | . | 1 | . | 1 | . | . | . | . | . | 1 | . | . | 1 | . |
| Peregrine | 3 | 1 | 2 | 1 | . | 1 | 1 | . | 3 | 1 | . | 4 | 4 | 4 |
| Water Rail | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . |
| Moorhen | 13 | 18 | 17 | 38 | 37 | 43 | 34 | 6 | 30 | 32 | 33 | 37 | 46 | 51 |
| Coot | 4 | 5 | 12 | 11 | 13 | 19 | 13 | 3 | 7 | 11 | 9 | 15 | 16 | 17 |
| Crane | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 |
| Oystercatcher | 6 | 10 | 14 | 22 | 28 | 24 | 22 | 1 | 24 | 35 | 39 | 39 | 49 | 44 |
| Avocet | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 |
| Little Ringed Plover | . | . | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 3 | 2 | 2 | 1 | 1 |
| Ringed Plover | . | 1 | . | 1 | 1 | . | . | 1 | . | 1 | 2 | 2 | 2 | . |
| Dotterel | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . |
| Golden Plover | 13 | 14 | 13 | 13 | 19 | 13 | 20 | . | 23 | 23 | 23 | 23 | 31 | 26 |
| Grey Plover | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . |
| Lapwing | 39 | 48 | 58 | 60 | 72 | 81 | 74 | 9 | 69 | 81 | 86 | 101 | 118 | 125 |
| Sanderling | . | . | . | . | . | 1 | 1 | . | 1 | . | 1 | . | . | . |
| Dunlin | 1 | 2 | 2 | 2 | 2 | 2 | 4 | 1 | 2 | 3 | 1 | 1 | 1 | 2 |
| Ruff | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . |
| Snipe | 14 | 13 | 12 | 18 | 17 | 19 | 20 | 1 | 21 | 26 | 30 | 22 | 33 | 37 |
| Woodcock | . | 3 | . | 1 | . | . | 1 | 1 | 1 | 2 | 2 | . | 3 | 4 |
| Black-tailed Godwit | . | . | . | 1 | . | 1 | . | . | . | . | . | . | 1 | . |
| Bar-tailed Godwit | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 |
| Whimbrel | . | . | . | 1 | . | . | 1 | . | . | . | 2 | . | 1 | 1 |
| Curlew | 51 | 48 | 53 | 57 | 66 | 67 | 69 | 1 | 63 | 70 | 80 | 82 | 94 | 105 |
| Redshank | 4 | 5 | 8 | 6 | 10 | 8 | 9 | 1 | 5 | 11 | 14 | 13 | 10 | 12 |
| Green Sandpiper | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . |
| Common Sandpiper | 5 | 4 | 7 | 7 | 6 | 4 | 7 | . | 5 | 6 | 5 | 5 | 6 | 8 |
| Turnstone | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . |
| Black-headed Gull | 34 | 35 | 42 | 46 | 47 | 45 | 44 | 11 | 45 | 39 | 39 | 48 | 59 | 53 |
| Common Gull | 7 | 6 | 9 | 8 | 8 | 7 | 6 | 3 | 8 | 8 | 8 | 5 | 12 | 14 |
| Lesser Black-backed Gull | 12 | 11 | 19 | 18 | 27 | 25 | 21 | 3 | 23 | 26 | 15 | 24 | 21 | 29 |
| Herring Gull | 11 | 11 | 14 | 27 | 29 | 28 | 25 | 2 | 18 | 19 | 23 | 33 | 28 | 32 |
| Great Black-backed Gull | . | . | 3 | 9 | 6 | 7 | 3 | 1 | 3 | 4 | 3 | 3 | 5 | 4 |
| Kittiwake | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . |
| Sandwich Tern | . | . | . | . | 1 | 1 | 1 | . | 1 | 1 | 1 | 1 | 1 | 1 |
| Common Tern | . | . | . | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | . |
| Arctic Tern | 1 | 1 | . | 1 | . | 1 | 1 | 2 | . | 1 | 1 | . | . | 1 |
| Little Tern | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . |
| Guillemot | . | . | . | . | 1 | . | . | . | . | 1 | . | . | 1 | 1 |
| Razorbill | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . |
| Feral Pigeon | 23 | 32 | 28 | 53 | 57 | 55 | 49 | 14 | 52 | 57 | 53 | 62 | 63 | 66 |
| Stock Dove | 22 | 24 | 27 | 36 | 32 | 31 | 31 | 7 | 40 | 48 | 41 | 54 | 50 | 57 |
| Woodpigeon | 63 | 75 | 87 | 116 | 117 | 125 | 113 | 21 | 102 | 117 | 129 | 152 | 161 | 194 |
| Collared Dove | 29 | 34 | 44 | 60 | 68 | 71 | 58 | 17 | 57 | 62 | 67 | 87 | 81 | 87 |
| Turtle Dove | 1 | 1 | 5 | 4 | 5 | 5 | 3 | . | 3 | 3 | 2 | 3 | 4 | 2 |
| Cuckoo | 33 | 36 | 36 | 39 | 34 | 36 | 32 | 5 | 32 | 32 | 51 | 43 | 46 | 42 |
| Barn Owl | . | 1 | 1 | 1 | 1 | . | 1 | . | 1 | 3 | 3 | 7 | 10 | 9 |
| Little Owl | 1 | 4 | 7 | 11 | 7 | 5 | 8 | 1 | 6 | 6 | 12 | 9 | 18 | 12 |
| Tawny Owl | 2 | 2 | 4 | 9 | 8 | 7 | 6 | . | 5 | 7 | 6 | 6 | 3 | 6 |
| Long-eared Owl | . | . | . | . | . | 1 | . | . | 1 | . | . | 1 | . | . |
| Short-eared Owl | 2 | 3 | 8 | . | 3 | 6 | 3 | . | 6 | 5 | 6 | 7 | 9 | 4 |
| Nightjar | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . |
| Swift | 46 | 43 | 44 | 60 | 65 | 71 | 68 | 17 | 57 | 65 | 65 | 96 | 86 | 90 |
| Kingfisher | . | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 5 | 1 | 5 | 3 | . |
| Green Woodpecker | 3 | 8 | 9 | 11 | 9 | 12 | 10 | 3 | 12 | 15 | 11 | 14 | 21 | 20 |
| Great Spotted Woodpecker | 8 | 15 | 11 | 15 | 21 | 25 | 31 | 4 | 29 | 27 | 35 | 42 | 44 | 51 |
| Lesser Spotted Woodpecker | 1 | 1 | 1 | 3 | 1 | . | . | . | . | . | . | . | . | 2 |
| Skylark | 64 | 68 | 74 | 99 | 98 | 106 | 98 | 13 | 84 | 95 | 108 | 117 | 144 | 159 |
| Sand Martin | 4 | 7 | 6 | 10 | 9 | 13 | 12 | 3 | 9 | 11 | 13 | 14 | 16 | 14 |
| Swallow | 65 | 67 | 82 | 108 | 105 | 119 | 105 | 17 | 95 | 101 | 121 | 135 | 150 | 170 |
| House Martin | 28 | 32 | 34 | 47 | 48 | 56 | 53 | 11 | 50 | 57 | 70 | 74 | 67 | 64 |
| Tree Pipit | 3 | 9 | 4 | 2 | 6 | 3 | 8 | 1 | 5 | 8 | 3 | 6 | 5 | 4 |
| Meadow Pipit | 46 | 47 | 49 | 56 | 60 | 58 | 62 | 5 | 59 | 63 | 71 | 79 | 92 | 97 |
| Yellow Wagtail | 11 | 14 | 16 | 14 | 17 | 19 | 20 | 4 | 18 | 14 | 20 | 16 | 24 | 24 |
| Grey Wagtail | 5 | 7 | 8 | 9 | 4 | 11 | 14 | 4 | 10 | 16 | 17 | 12 | 14 | 26 |
| Pied Wagtail | 39 | 55 | 52 | 71 | 73 | 85 | 85 | 15 | 67 | 76 | 81 | 95 | 100 | 109 |
| Dipper | 4 | 1 | 2 | 2 | 3 | 4 | 4 | . | . | 3 | 8 | 6 | 6 | 7 |
| Wren | 64 | 72 | 83 | 103 | 121 | 120 | 117 | 19 | 114 | 123 | 134 | 149 | 163 | 199 |
| Dunnock | 50 | 54 | 71 | 93 | 95 | 100 | 89 | 18 | 85 | 88 | 100 | 121 | 120 | 152 |
| Robin | 57 | 63 | 77 | 100 | 99 | 112 | 99 | 18 | 91 | 101 | 113 | 132 | 139 | 170 |
| Black Redstart | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . |
| Redstart | 4 | 6 | 8 | 12 | 13 | 9 | 10 | . | 10 | 10 | 8 | 11 | 17 | 13 |
| Whinchat | 3 | 4 | . | 1 | . | 2 | 1 | . | 2 | 2 | 3 | 2 | 2 | 4 |
| Stonechat | . | 1 | . | 1 | 1 | 1 | 1 | . | 2 | 4 | 4 | 4 | 7 | 11 |
| Wheatear | 19 | 17 | 18 | 20 | 24 | 24 | 16 | 2 | 25 | 29 | 29 | 32 | 29 | 48 |
| Ring Ouzel | 4 | 3 | 3 | 2 | 6 | 3 | 3 | . | 6 | 4 | 7 | 5 | 8 | 11 |
| Blackbird | 64 | 71 | 87 | 116 | 116 | 127 | 116 | 21 | 105 | 119 | 125 | 151 | 160 | 186 |
| Fieldfare | 1 | 4 | . | 3 | 2 | 3 | 2 | . | 3 | 6 | 1 | 3 | 3 | 2 |
| Song Thrush | 37 | 46 | 53 | 68 | 75 | 79 | 72 | 18 | 66 | 82 | 89 | 104 | 121 | 129 |
| Redwing | . | 1 | . | . | . | . | 1 | . | . | 2 | . | 1 | . | 1 |
| Mistle Thrush | 31 | 35 | 45 | 51 | 67 | 74 | 61 | 12 | 61 | 74 | 61 | 78 | 73 | 85 |
| Grasshopper Warbler | 2 | 2 | . | 2 | 2 | 3 | 3 | . | . | 1 | . | . | 1 | 2 |
| Sedge Warbler | 8 | 10 | 13 | 18 | 12 | 18 | 17 | 4 | 9 | 15 | 14 | 13 | 10 | 17 |
| Reed Warbler | 2 | 2 | . | 3 | 2 | 4 | 4 | . | 1 | 4 | 5 | 4 | 10 | 5 |
| Blackcap | 28 | 29 | 36 | 51 | 56 | 57 | 45 | 14 | 53 | 54 | 67 | 82 | 85 | 85 |
| Garden Warbler | 10 | 8 | 20 | 15 | 18 | 16 | 26 | 4 | 10 | 11 | 18 | 21 | 21 | 19 |
| Lesser Whitethroat | 8 | 7 | 7 | 5 | 5 | 6 | 13 | 3 | 12 | 7 | 6 | 5 | 15 | 18 |
| Whitethroat | 35 | 36 | 41 | 68 | 63 | 59 | 62 | 13 | 47 | 52 | 64 | 73 | 83 | 91 |
| Wood Warbler | 1 | 2 | . | . | 3 | 1 | 2 | 1 | 1 | 2 | 1 | 3 | 1 | 2 |
| Chiffchaff | 17 | 18 | 20 | 36 | 38 | 42 | 31 | 11 | 37 | 47 | 60 | 57 | 47 | 67 |
| Willow Warbler | 55 | 59 | 74 | 96 | 99 | 99 | 94 | 15 | 68 | 72 | 80 | 86 | 95 | 105 |
| Goldcrest | 9 | 12 | 14 | 8 | 12 | 13 | 18 | 2 | 14 | 16 | 13 | 19 | 22 | 25 |
| Spotted Flycatcher | 7 | 11 | 6 | 10 | 10 | 9 | 7 | . | 9 | 8 | 7 | 12 | 7 | 9 |
| Pied Flycatcher | . | 1 | 1 | 1 | 2 | 1 | 1 | . | 2 | 1 | 1 | 2 | 3 | 1 |
| Long-tailed Tit | 14 | 14 | 23 | 27 | 33 | 29 | 28 | 7 | 34 | 34 | 42 | 45 | 47 | 59 |
| Marsh Tit | 1 | 7 | 4 | 3 | 3 | 3 | 2 | 1 | 2 | 3 | 1 | 2 | 3 | 5 |
| Willow Tit | 4 | 3 | 8 | 6 | 5 | 4 | 4 | 4 | 2 | 6 | 3 | 5 | 6 | 7 |
| Coal Tit | 11 | 15 | 18 | 21 | 19 | 20 | 19 | 5 | 26 | 23 | 27 | 36 | 35 | 44 |
| Blue Tit | 59 | 63 | 78 | 107 | 107 | 112 | 102 | 20 | 97 | 108 | 116 | 136 | 140 | 170 |
| Great Tit | 43 | 53 | 69 | 86 | 88 | 86 | 87 | 18 | 77 | 90 | 93 | 119 | 129 | 148 |
| Nuthatch | 4 | 3 | 7 | 4 | 6 | 6 | 5 | 2 | 9 | 11 | 8 | 8 | 7 | 21 |
| Treecreeper | 6 | 4 | 4 | 7 | 9 | 13 | 9 | 1 | 10 | 7 | 10 | 10 | 18 | 18 |
| Jay | 10 | 12 | 6 | 11 | 12 | 12 | 14 | 3 | 12 | 14 | 14 | 12 | 19 | 24 |
| Magpie | 44 | 41 | 54 | 67 | 84 | 88 | 79 | 18 | 70 | 74 | 79 | 90 | 96 | 117 |
| Jackdaw | 41 | 48 | 57 | 76 | 75 | 81 | 83 | 12 | 66 | 90 | 90 | 100 | 108 | 112 |
| Rook | 51 | 53 | 64 | 84 | 84 | 84 | 80 | 9 | 64 | 80 | 82 | 101 | 101 | 114 |
| Carrion Crow | 73 | 74 | 90 | 115 | 125 | 127 | 114 | 19 | 109 | 114 | 132 | 153 | 173 | 192 |
| Hooded Crow | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . |
| Raven | . | 1 | 1 | 1 | . | . | 3 | . | 2 | 3 | 1 | 1 | 5 | 6 |
| Starling | 62 | 58 | 73 | 101 | 101 | 109 | 96 | 19 | 95 | 98 | 100 | 121 | 114 | 129 |
| House Sparrow | 42 | 41 | 56 | 79 | 81 | 82 | 76 | 17 | 69 | 75 | 77 | 97 | 92 | 107 |
| Tree Sparrow | 10 | 11 | 14 | 16 | 17 | 18 | 18 | 3 | 14 | 20 | 28 | 28 | 39 | 48 |
| Chaffinch | 65 | 70 | 84 | 113 | 113 | 122 | 115 | 17 | 104 | 118 | 131 | 153 | 168 | 196 |
| Brambling | . | . | . | . | 1 | . | . | . | . | 1 | . | 2 | 1 | . |
| Greenfinch | 42 | 40 | 50 | 77 | 83 | 85 | 77 | 20 | 77 | 85 | 91 | 116 | 124 | 123 |
| Goldfinch | 38 | 39 | 54 | 63 | 68 | 73 | 75 | 17 | 71 | 71 | 80 | 105 | 104 | 132 |
| Siskin | 1 | 2 | 4 | 6 | 3 | 3 | 3 | 1 | 1 | . | 4 | 4 | 5 | 6 |
| Linnet | 45 | 46 | 57 | 73 | 82 | 83 | 72 | 13 | 61 | 81 | 72 | 94 | 102 | 95 |
| Twite | 2 | 1 | 2 | 2 | 2 | 4 | 1 | . | 3 | 2 | 1 | . | 2 | 2 |
| Lesser Redpoll | 5 | 5 | 3 | 6 | 6 | 3 | 4 | . | 6 | 6 | 3 | 4 | 5 | 2 |
| Crossbill | 1 | . | . | 1 | . | . | . | . | 1 | 1 | . | 1 | 3 | 1 |
| Bullfinch | 10 | 6 | 11 | 15 | 11 | 14 | 11 | 5 | 10 | 14 | 12 | 17 | 20 | 25 |
| Yellowhammer | 36 | 44 | 50 | 71 | 65 | 73 | 63 | 8 | 51 | 60 | 68 | 89 | 87 | 113 |
| Reed Bunting | 14 | 15 | 18 | 20 | 21 | 22 | 22 | 5 | 21 | 24 | 28 | 40 | 56 | 56 |
| Corn Bunting | 8 | 7 | 9 | 20 | 16 | 19 | 16 | 1 | 11 | 19 | 14 | 14 | 17 | 20 |
| Carolina Wood Duck | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . |
| Peafowl | . | . | . | . | . | . | . | . | . | . | 4 | 3 | 3 | 1 |
| Helmeted Guineafowl | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 |
| Total number of Species | 113 | 123 | 117 | 132 | 127 | 124 | 134 | 98 | 123 | 132 | 135 | 132 | 140 | 136 |
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