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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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Magellan Goose (Chloephaga picta leucoptera) 
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Magellan Horned Owl (Bubo magellanicus) 
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Magnificent Frigatebird (Fregata magnificens)
Brazil – April, May

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Magpie (Pica pica)
see also Eurasian Magpie
Wales – April-June, August-December; Tongwynlais – April, June, August, September, December; Forest Farm – April, May, August, October-December; Bardsey – May; England – February, April, October-December; Ireland – July, September








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Magpie Goose (Anseranas semipalmata) 
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Malachite Kingfisher (Alcedo cristata)
Botswana – August

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Maltese Sparrow (Passer hispaniolensis maltae)
Sicily – May

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Mandarin Duck (Aix galericulata)
England – February, April, May, July; Sicily – May





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Manx Shearwater (Puffinus puffinus)
Skomer – May, July; Skokholm – May; Bardsey – May; Lundy – July





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Marabou Stork (Leptoptilos crumenifer)
Botswana – August



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Marsh Harrier (Circus aeruginosus)
England – February, April, May, October, November; Somerset Levels – February, April, October; Greece – September





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Masked Flowerpiercer (Diglossa cyanea)
Ecuador – August

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Masked Water-tyrant (Fluvicola nengeta)
Brazil – April, May

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Mealy Amazon (Amazona farinosa) 
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Mediterranean Gull (Ichthyaetus melanocephalus)
Wales – January, September; England – September


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Mediterranean Shag (Phalacrocorax aristotelis desmarestii)
Corsica – May, June; Sardinia – June; Greece – September


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Medium Ground Finch (Geospiza fortis)
Galapagos – August

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Merlin (Falco columbarius)
Goldcliff – April


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Meves’s Glossy-starling (Lamprotornis mevesii)
Botswana – August

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Meyer’s Parrot (Poicephalus meyeri)
Botswana – August

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Mindanao Bleeding-heart (Gallicolumba crinigera) 
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Monk Parakeet (Myiopsitta monachus)
Spain – May, June; Argentina – April


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









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Mourning Wheatear (Oenanthe lugens)
Jordan – April

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Muscovy Duck (Cairina moschata)
England – February, March; Scotland – June; Portugal – September

































