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Notes

01 September 1968 Comments Notes Semipalmated Sandpiper in Kent.--On ioth September 1967 J.G.H. found a Semipalmated Sandpiper Calidris pusilla on the WAGBIWildfowl Trust Experimental Gravel Pit Reserve at Sevenoaks, Kent. Identification was made easier because of his previous experience...

Wigeon X Chiloe Wigeon hybrid resembling American Wigeon

01 April 1968 Comments Main paper It has been established that some interspecific hybrids among ducks and geese (Anatidae) strongly resemble one parent or even another species altogether, thus causing problems in field-identification. An extreme case in Britain is the hybrid Pochard Ay...

Notes

01 January 1967 Comments Notes Heron apparently fishing i n deep water.--The observations below were made by us independently on two separate days, but, because the behaviour was so similar on each occasion as to suggest that it might be the not infrequent habit of one individual, the ...

Hybrid Grey Lag X Canada Goose suggesting influence of Giant Canada Goose in Britain

01 December 1966 Comments Main paper of 1962, at Millom, south Cumberland, a male Grey Lag Goose Anser anser mated with a female Canada Goose Branta canadensis. The Canada Goose, which was perfectly normal in all its plumage characters, had flown in to join a flock of Grey Lags maintained in...

Semipalmated Sandpiper in Kent and the problem of identification

01 December 1966 Comments Main paper T H E SMALL American Calidris -waders are notoriously difficult to identify, particularly by anyone lacking in experience of the group (see, for example, Nisbet 1963 and Marchant 1963). Between 6th and 9th September 1965, what eventually proved to be a Se...

The juvenile Plumage of the Icelandic Black-tailed Godwit and further occurrences of this race in England

01 January 1965 Comments Main paper Icelandic Black-tailed Godwit ~Limosa limosa islandica in Britain and, quoting Williamson and Ruttledge (1958) in support, indicated that this form appeared t o favour the 'western and southern half of the country. This opinion was also upheld by Norrevan...

Radar films of migration over eastern England

01 September 1962 Comments Main paper Research Laboratories of Marconi's Wireless Telegraphy Co. Ltd., at Great Baddow, Chelmsford, Essex, have taken films of a radar display by time-lapse photography and many of these provide a clear record of bird migration; some were shown at the British O...

Letters

01 February 1961 Comments Letters The Len Howard Appeal Sirs--All readers of Miss Len Howard's books Birds as Individuals and Living with Birds have been distressed to learn that her life's work is threatened by building on the land next to her garden sanctuary. For twenty-one years Miss ...

Watching migration by radar

01 August 1959 Comments Main paper So FAR AS I know, the first time that radar echoes were definitely identified as coming from birds was in the spring of 1940, when an experimental equipment on a wavelength of 50 cm. at Christchurch, Hampshire, detected gulls (Larus spp.) (Shire, 1958). U...

Notes

01 August 1958 Comments Notes Eider's method of eating crabs.--On 16th December 1957 and subsequent days I had several first-winter Eiders (Somateria mollissima) under observation from the pier at Southend-on-Sea, Essex. They were seen diving from a range of a few yards and on returni...

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Notes

Wigeon X Chiloe Wigeon hybrid resembling American Wigeon

Notes

Hybrid Grey Lag X Canada Goose suggesting influence of Giant Canada Goose in Britain

Semipalmated Sandpiper in Kent and the problem of identification

The juvenile Plumage of the Icelandic Black-tailed Godwit and further occurrences of this race in England

Radar films of migration over eastern England

Letters

Watching migration by radar

Notes

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