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Article
Hugh Boyd, AuteurDans Wildfowl (51 2000)The abdominal profiles of Barnacle Geese (Branta leucopsis) staging in northwest Iceland in spring were studied from 13-18 May 1978 and 25 April-10 May 1999 and on Islay, Scotland from 12-15 April 1979. Mean profile scores were highest in April [...]
Ouvrage
Article
Article
Hugh Boyd ; Jeffery Harrison 1962Wildfowl, 13(13)Recoveries of young Mallard in their first season are used to compare the dispersal of hand-reared and of wild ducks in Britain. The only important difference is in the proportion of birds moving away from the point of release: hand-reared birds[...]
Chapitre
Article
Article
Hugh Boyd, Auteur ; Anthony D. Fox, AuteurDans Wildfowl (58 2008)Numbers of Greenland White-fronted Goose Anser albifrons flavirostris pairs breeding successfully have been falling since the 1980s, markedly so since the mid-1990s. The latter change coincides with a switch in the Atlantic Multidecadal Oscillat[...]
Article
Hugh Boyd, AuteurWilliam Brotherston, watching Pink-footed Geese roosting at Fala Moor Loch and feeding on the north slopes of the Moorfoot Hills, Midlothian, Scotland, recorded changes in numbers in spring, the influences of weather and farming practices, sexua[...]
Article
Hugh Boyd, AuteurDans Wildfowl (57 2007)Long-term studies of 18 populations of eight goose species breeding from arctic Canada to western Siberia have recorded annual variation in the breeding success of geese as the percentage of juveniles seen in autumn. Regression of the annual bre[...]
Article
Hugh Boyd, Auteur
Article
Hugh Boyd, Auteur ; Michael V. Bell, Auteur ; A. Donald Watson, AuteurRecords of first arrivals of geese at sites in Iceland between 1950 and 1997 are combined with dates of departures from Scottish roosts and flights seen over northern Scotland to identify when migratory movements occurred. Greylag Geese Anser an[...]
Article
Hugh Boyd, AuteurThe value of the comparative method in ethology was established at the intra- and inter-generic level about 60 years ago. Here I suggest that intraspecific comparisons of behaviour at long intervals may also be instructive (though in less dramat[...]
