James Anderson: Hertfordshire Life List BOU, All records: Top Blockers Record(s) 1 to 169 of 169 total. Seq. Species Scientific Name Seen By Other Listers Other Listers (%) 1 Brent Goose Branta bernicla 26 60.47 2 Canada Goose Branta canadensis 40 93.02 3 Barnacle Goose Branta leucopsis 31 72.09 4 Greylag Goose Anser anser 37 86.05 5 Pink-footed Goose Anser brachyrhynchus 28 65.12 6 White-fronted Goose Anser albifrons 28 65.12 7 Mute Swan Cygnus olor 39 90.70 8 Whooper Swan Cygnus cygnus 32 74.42 9 Egyptian Goose Alopochen aegyptiaca 35 81.40 10 Shelduck Tadorna tadorna 35 81.40 11 Mandarin Duck Aix galericulata 34 79.07 12 Garganey Spatula querquedula 33 76.74 13 Shoveler Spatula clypeata 38 88.37 14 Gadwall Mareca strepera 39 90.70 15 Wigeon Mareca penelope 38 88.37 16 Mallard Anas platyrhynchos 39 90.70 17 Pintail Anas acuta 33 76.74 18 Teal Anas crecca 39 90.70 19 Green-winged Teal Anas carolinensis 15 34.88 20 Red-crested Pochard Netta rufina 38 88.37 21 Pochard Aythya ferina 37 86.05 22 Ring-necked Duck Aythya collaris 28 65.12 23 Tufted Duck Aythya fuligula 39 90.70 24 Scaup Aythya marila 32 74.42 25 Goldeneye Bucephala clangula 37 86.05 26 Smew Mergellus albellus 35 81.40 27 Goosander Mergus merganser 36 83.72 28 Pheasant Phasianus colchicus 38 88.37 29 Quail Coturnix coturnix 32 74.42 30 Red-legged Partridge Alectoris rufa 35 81.40 31 Swift Apus apus 37 86.05 32 Cuckoo Cuculus canorus 35 81.40 33 Rock Dove (Feral Pigeon) Columba livia 37 86.05 34 Stock Dove Columba oenas 36 83.72 35 Woodpigeon Columba palumbus 40 93.02 36 Collared Dove Streptopelia decaocto 38 88.37 37 Water Rail Rallus aquaticus 36 83.72 38 Spotted Crake Porzana porzana 26 60.47 39 Moorhen Gallinula chloropus 40 93.02 40 Coot Fulica atra 39 90.70 41 Little Grebe Tachybaptus ruficollis 37 86.05 42 Great Crested Grebe Podiceps cristatus 39 90.70 43 Black-necked Grebe Podiceps nigricollis 33 76.74 44 Oystercatcher Haematopus ostralegus 35 81.40 45 Avocet Recurvirostra avosetta 25 58.14 46 Golden Plover Pluvialis apricaria 35 81.40 47 Dotterel Eudromias morinellus 28 65.12 48 Ringed Plover Charadrius hiaticula 33 76.74 49 Little Ringed Plover Charadrius dubius 38 88.37 50 Lapwing Vanellus vanellus 37 86.05 51 Eurasian Whimbrel Numenius phaeopus 27 62.79 52 Curlew Numenius arquata 28 65.12 53 Black-tailed Godwit Limosa limosa 35 81.40 54 Jack Snipe Lymnocryptes minimus 31 72.09 55 Snipe Gallinago gallinago 38 88.37 56 Common Sandpiper Actitis hypoleucos 36 83.72 57 Green Sandpiper Tringa ochropus 37 86.05 58 Wood Sandpiper Tringa glareola 29 67.44 59 Redshank Tringa totanus 36 83.72 60 Greenshank Tringa nebularia 33 76.74 61 Turnstone Arenaria interpres 26 60.47 62 Knot Calidris canutus 24 55.81 63 Ruff Calidris pugnax 32 74.42 64 Temminck's Stint Calidris temminckii 28 65.12 65 Dunlin Calidris alpina 35 81.40 66 Black Tern Chlidonias niger 33 76.74 67 White-winged Black Tern Chlidonias leucopterus 30 69.77 68 Arctic Tern Sterna paradisaea 33 76.74 69 Common Tern Sterna hirundo 37 86.05 70 Sandwich Tern Thalasseus sandvicensis 29 67.44 71 Little Gull Hydrocoloeus minutus 31 72.09 72 Black-headed Gull Chroicocephalus ridibundus 41 95.35 73 Mediterranean Gull Ichthyaetus melanocephalus 28 65.12 74 Common Gull Larus canus 38 88.37 75 Caspian Gull Larus cachinnans 26 60.47 76 Herring Gull Larus argentatus 38 88.37 77 Yellow-legged Gull Larus michahellis 28 65.12 78 Great Black-backed Gull Larus marinus 36 83.72 79 Lesser Black-backed Gull Larus fuscus 37 86.05 80 Cormorant Phalacrocorax carbo 38 88.37 81 Bittern Botaurus stellaris 35 81.40 82 Little Bittern Ixobrychus minutus 21 48.84 83 Little Egret Egretta garzetta 36 83.72 84 Cattle Egret Bubulcus ibis 30 69.77 85 Great White Egret Ardea alba 32 74.42 86 Grey Heron Ardea cinerea 39 90.70 87 Osprey Pandion haliaetus 32 74.42 88 Sparrowhawk Accipiter nisus 37 86.05 89 Marsh Harrier Circus aeruginosus 28 65.12 90 Pallid Harrier Circus macrourus 23 53.49 91 Red Kite Milvus milvus 36 83.72 92 Buzzard Buteo buteo 37 86.05 93 Barn Owl Tyto alba 33 76.74 94 Little Owl Athene noctua 34 79.07 95 Short-eared Owl Asio flammeus 31 72.09 96 Tawny Owl Strix aluco 35 81.40 97 Hoopoe Upupa epops 22 51.16 98 Kingfisher Alcedo atthis 39 90.70 99 Lesser Spotted Woodpecker Dryobates minor 32 74.42 100 Great Spotted Woodpecker Dendrocopos major 37 86.05 101 Green Woodpecker Picus viridis 38 88.37 102 Kestrel Falco tinnunculus 39 90.70 103 Hobby Falco subbuteo 36 83.72 104 Peregrine Falco peregrinus 33 76.74 105 Ring-necked Parakeet Psittacula krameri 35 81.40 106 Great Grey Shrike Lanius excubitor 26 60.47 107 Jay Garrulus glandarius 38 88.37 108 Magpie Pica pica 40 93.02 109 Jackdaw Coloeus monedula 37 86.05 110 Rook Corvus frugilegus 38 88.37 111 Carrion Crow Corvus corone 39 90.70 112 Raven Corvus corax 34 79.07 113 Coal Tit Periparus ater 38 88.37 114 Marsh Tit Poecile palustris 35 81.40 115 Blue Tit Cyanistes caeruleus 39 90.70 116 Great Tit Parus major 39 90.70 117 Bearded Tit Panurus biarmicus 25 58.14 118 Skylark Alauda arvensis 36 83.72 119 Sand Martin Riparia riparia 36 83.72 120 Swallow Hirundo rustica 38 88.37 121 House Martin Delichon urbicum 37 86.05 122 Cetti's Warbler Cettia cetti 34 79.07 123 Long-tailed Tit Aegithalos caudatus 37 86.05 124 Willow Warbler Phylloscopus trochilus 34 79.07 125 Chiffchaff Phylloscopus collybita 36 83.72 126 Sedge Warbler Acrocephalus schoenobaenus 35 81.40 127 Reed Warbler Acrocephalus scirpaceus 37 86.05 128 Marsh Warbler Acrocephalus palustris 30 69.77 129 Blackcap Sylvia atricapilla 38 88.37 130 Garden Warbler Sylvia borin 34 79.07 131 Lesser Whitethroat Curruca curruca 33 76.74 132 Whitethroat Curruca communis 36 83.72 133 Goldcrest Regulus regulus 37 86.05 134 Wren Troglodytes troglodytes 39 90.70 135 Nuthatch Sitta europaea 38 88.37 136 Treecreeper Certhia familiaris 36 83.72 137 Starling Sturnus vulgaris 39 90.70 138 Song Thrush Turdus philomelos 38 88.37 139 Mistle Thrush Turdus viscivorus 37 86.05 140 Redwing Turdus iliacus 38 88.37 141 Blackbird Turdus merula 38 88.37 142 Fieldfare Turdus pilaris 37 86.05 143 Ring Ouzel Turdus torquatus 25 58.14 144 Robin Erithacus rubecula 40 93.02 145 Black Redstart Phoenicurus ochruros 28 65.12 146 Whinchat Saxicola rubetra 32 74.42 147 Stonechat Saxicola rubicola 36 83.72 148 Wheatear Oenanthe oenanthe 32 74.42 149 Tree Sparrow Passer montanus 31 72.09 150 House Sparrow Passer domesticus 39 90.70 151 Dunnock Prunella modularis 38 88.37 152 Yellow Wagtail Motacilla flava 35 81.40 153 Grey Wagtail Motacilla cinerea 39 90.70 154 Pied Wagtail Motacilla alba 38 88.37 155 Meadow Pipit Anthus pratensis 35 81.40 156 Rock Pipit Anthus petrosus 25 58.14 157 Chaffinch Fringilla coelebs 38 88.37 158 Brambling Fringilla montifringilla 34 79.07 159 Hawfinch Coccothraustes coccothraustes 33 76.74 160 Bullfinch Pyrrhula pyrrhula 38 88.37 161 Greenfinch Chloris chloris 39 90.70 162 Linnet Linaria cannabina 36 83.72 163 Lesser Redpoll Acanthis cabaret 34 79.07 164 Goldfinch Carduelis carduelis 38 88.37 165 Siskin Spinus spinus 37 86.05 166 Corn Bunting Emberiza calandra 34 79.07 167 Yellowhammer Emberiza citrinella 36 83.72 168 Little Bunting Emberiza pusilla 26 60.47 169 Reed Bunting Emberiza schoeniclus 38 88.37