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Observed in the wild (as opposed to various forms of captivity, such as aviaries, falconry displays or pinioned birds in public parks). Locations apply to birds observed in the wild only. |
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Cape Barren Goose (Cereopsis novaehollandiae) 
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Cape Robin-chat (Cossypha caffra) 
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Capercaillie (Tetrao urogallus) 
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Caribbean Flamingo (Phoenicopterus ruber)
see also American Flamingo
Galapagos – August



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Carrion / Hooded Crow Hybrid (Corvus corone x Corvus cornix)
Scotland – July

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Cassowary (Casuarius casuarius) 
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Cattle Egret (Bubulcus ibis)
Somerset Levels – April; Spain – September; Portugal – September; Sardinia – June





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Cetti’s Warbler (Cettia cetti)
Cardiff – April; England – March-May; Somerset Levels – April, May




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Chestnut-backed Thrush (Geokichla dohertyi) 
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Chestnut-breasted Coronet (Boissonneaua matthewsii)
Ecuador – August


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Chestnut Teal (Anas castanea) 
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Chilean Flamingo (Phoenicopterus chilensis) 
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Chiloé Wigeon (Mareca sibilatrix) 
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Cirl Bunting (Emberiza cirlus)
England – January; Spain – June; Sicily – June; Greece – September



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Coal Tit (Periparus ater)
Forest Farm – July, October, November; England – February, April; Scotland – June; Greece – August





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Cockatiel (Nymphicus hollandicus)
Portugal – September


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Collared Hill-partridge (Arborophila gingica) 

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Collared Inca (Coeligena torquata)
Ecuador – August

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Common Blackbird (Turdus merula)
see also Blackbird
Wales – February-May, July, September, November; Tongwynlais – March, April, September, November; Forest Farm – February-April, November; Gower – May; Bardsey – May; England – April-June, September, November, December; Lundy – July; Scotland – June; Spain – June; Portugal – August, September








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Common Buzzard (Buteo buteo)
see also Buzzard
Wales – January-December; Tongwynlais – March, May, June; Forest Farm – January-August, October-December; Goldcliff – August, November; Gower – July; Skomer – May; Bardsey – May; England – January-April, August, October, November; Scotland – June-September; Ireland – August, September; Spain – June, August, September; Portugal -September; Greece – September







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Common Crane (Grus grus) 

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Common Crossbill (Loxia curvirostra)
Corsica – June

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Common Eider (Somateria mollissima)
see also Eider
England – June, August; Scotland – June, July, September; Orkneys – July; Shetlands – June; Outer Hebrides – June; St.Kilda – June; Ireland – August






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Common Goldeneye (Bucephala clangula)
see also Goldeneye
Scotland – June


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Common Greenshank (Tringa nebularia)
see also Greenshank
Wales – October, November; Goldcliff – October, November; England – October




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Common Guillemot (Uria aalge)
see also Common Murre, Guillemot
Wales – May, July; Skomer – May, July; Skokholm – May; Ramsey Island – July; Bardsey – May; England – January, June; Lundy – June, July; Scotland – June, July, September; Shetlands – June; St.Kilda – June; Ireland – June, August; Belgium – January







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Common Gull (Larus canus)
Scotland – June-August; Orkneys – July; Shetlands – June; Outer Hebrides – June; Ireland – August, September; Belgium – January





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Common Kestrel (Falco tinnunculus)
see also Kestrel
Wales – February, July, September-November; Gower – July; England – February, May-November; Lundy – August; Somerset Levels – October; Scotland – September; Spain – August, September; Corsica – May, June; Italy – June; Sicily – June











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Common Kingfisher (Alcedo atthis)
see also Kingfisher
Forest Farm – January-July, September-December; England – February, August-December; Somerset Levels – October; New Forest – December; Greece – September














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Common Linnet (Linaria cannabina)
see also Linnet
Wales – February, April-July; Cardiff – February; Goldcliff – April; Gower – May, July; Skomer – May; Ramsey Island – July; Bardsey – May; England – April, June, July, September; Lundy – July; Scotland – June; Spain – August; Corsica – May









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Common Merganser (Mergus merganser)
see also Goosander
Wales – January-April, September-December; Tongwynlais – April; Forest Farm – January-April, October-December; Cardiff – February, October, November; England – January, February, June, October, November; Scotland – February






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Common Moorhen (Gallinula chloropus)
see also Moorhen
Wales – January-November; Forest Farm – January-November; Cardiff – November; Goldcliff – August; Bardsey – May; England – January, April, May, July; Ireland – September; Spain – June; Sardinia – June









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Common Murre (Uria aalge)
see also Common Guillemot, Guillemot
Wales – May, July; Skomer – May, July; Skokholm – May; Ramsey Island – July; Bardsey – May; England – January, June; Lundy – June, July; Scotland – June, July, September; Shetlands – June; St.Kilda – June; Ireland – June, August; Belgium – January







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Common Myna (Acridotheres tristis)
Myanmar – April

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Common Pheasant (Phasianus colchicus)
see also Pheasant
Wales – March, September, October; England – February-May, August-November; Somerset Levels – October; Scotland – June






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Common Quail (Coturnix coturnix)
see also Quail
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Common Redpoll (Acanthis flammea)
Wales – April, May; Bardsey – May



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Common Redshank (Tringa totanus)
see also Redshank
Wales – January, March-May, August-December; Cardiff – January; Goldcliff – April, August, September, November; England – February, April, June, August-October, December; New Forest – February, April, August, December; Shetlands – June; Ireland – September; Portugal – September







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Common Redstart (Phoenicurus phoenicurus)
Italy – June

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Common Sandpiper (Actitis hypoleucos)
Wales – February, April; Cardiff – February; England – June; Scotland – June; Outer Hebrides – June; Portugal – August, September






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Common Starling (Sturnus vulgaris)
see also Starling
Wales – February-April, June, November; Cardiff – February; Goldcliff – April; England – January-March, May, June-December; Lundy – July; Scotland – June, August; Shetlands – June; Outer Hebrides – June; St.Kilda – June; Ireland – June, August, September; Italy – June









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Common Stonechat (Saxicola torquata)
see also European Stonechat, Stonechat
Wales – March-July, September, November, December; Gower – May-July, September; Bardsey – May; England – January-March, April, July, August, October, November; Lundy – July; Somerset Levels – February; Scotland – June, July; Orkneys – July; Ireland – July-September; Spain – August; Portugal – September; Greece – September







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Common Swift (Apus apus)
see also Swift
Forest Farm – July; England – May, July; Spain – June; Italy – June; Greece – August





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Common Tern (Sterna hirundo)
New Forest – April; Scotland – June, July; Shetlands – June; Sardinia – May



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Coot (Fulica atra)
see also Eurasian Coot
Wales – February, April, November; Cardiff – April, November; Goldcliff – April; England – April, May, July, October, November; Somerset Levels – October; New Forest – April; Ireland – June, August; Portugal – September





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Coppersmith Barbet (Psilopogon haemacephalus)
see also Crimson-breasted Barbet
Myanmar – April

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Cormorant (Phalacrocorax carbo)
see also Great Cormorant
Wales – January-December; Forest Farm – January-May, July, August, October-December; Cardiff – October; Ramsey Island – July; Bardsey – May; England – January-May, July-November; Somerset Levels – April, May; Scotland – June; Shetlands – June; Ireland – August, September; Spain – August; Portugal – September; Belgium – January









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Corn Bunting (Emberiza calandra)
Outer Hebrides – June; Corsica – May; Sicily – June



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Corncrake (Crex crex)
Scotland – June; Outer Hebrides – June


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Coscoroba Swan (Coscoroba coscoroba) 
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Crag Martin (Ptyonoprogne rupestris)
Spain – August; Portugal – August, September; Italy – September


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Crested Barbet (Trachyphonus vaillantii)
Botswana – August

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Crested Lark (Galerida cristata)
Spain – June, August; Portugal – September; Sicily – May, June; Greece – September





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Crested Partridge (Rollulus rouloul)
see also Roul-roul Partridge


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Crested Screamer (Chauna torquata)
see also Southern Screamer

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Crimson-breasted Barbet (Psilopogon haemacephalus)
see also Coppersmith Barbet
Myanmar – April

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Crimson-breasted Shrike (Laniarius atrococcineus)
Botswana – September

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Crimson-mantled Woodpecker (Colaptes rivolii)
Ecuador – August

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Crimson Rosella (Platycercus elegans) 
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Cuban Emerald Hummingbird (Chlorostilbon ricordii)
Cuba – April

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Cuban Trogon (Priotelus temnurus)
Cuba – April

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Cuckoo (Cuculus canorus)
England – April, May; Scotland – June; Outer Hebrides – June

























































