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Article
H. Boyd, Auteur ; T. Piersma, AuteurThe nominate (Afro-Siberian) subspecies of the Knot Calidris canutus canutus breeds on the Taimyr Peninsula in Siberia and occurs commonly in the westernmost Wadden Sea during migration to West and South Africa. The recoveries and controls of 20[...]
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Canadian Wildlife Service Ottawa (CAN) 40p phot coul
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IWRB Slimbridge (GBR) 109p ill* IWRB Spec Publ 9
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H. Boyd, Auteur ; A. D. Fox, Auteur ; J. N. Kristiansen, Auteur ; D. A. Stroud, Auteur ; A. J. Walsh, Auteur ; S. M. Warren, AuteurAbdominal profiles of spring-staging White-fronted Geese in Iceland were recorded in 1990, 1991, 1997 and 1998, chiefly at Hvanneyri, the largest known staging area. Median profile scores were markedly lower on arrival in Iceland than at departu[...]
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H. Boyd, Auteur ; T. Piersma, AuteurDans Ardea (89(2) 2001)The demography of Red Knots Calidris canutus islandica wintering in Britain from 1969 to 1995 was examined using published data on winter numbers, unpublished ringing data, and information on the percentages first year birds in late autumn and w[...]
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T. Piersma, Auteur ; K. G. Rogers, Auteur ; H. Boyd, Auteur ; E. J. Bunskoeke, Auteur ; J. Jukema, AuteurChanges in annual survival and recruitment rates over the second half of the 20th century were calculated from 1834 recoveries and 400 recaptures in the years following ringing of 77 069 Eurasian Golden Plovers ringed in The Netherlands. Almost [...]
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A. Reed, Auteur ; R. J. Hughes, Auteur ; H. Boyd, AuteurDans Wildfowl (53 2002)To monitor the numbers and distribution of Greater Snow Geese at the largest breeding colony in the eastern Canadian High Arctic, surveys were conducted on Bylot Island at five year intervals from 1983 to 1998. The surveys were conducted during [...]
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A. D. Fox, Auteur ; J. O. Hilmarsson, Auteur ; O. Einarsson, Auteur ; H. Boyd, Auteur ; J. N. Kristiansen, Auteur ; D. A. Stroud, Auteur ; A. J. Walsh, Auteur ; S. M. Warren, Auteur ; C. Mitchell, Auteur ; I. S. Francis, Auteur ; T. Nygaard, AuteurDans Wildfowl (50 1999)A combination of ringing recoveries, resightings of individually marked birds and regularly counted census routes suggest that Greenland White-fronted Geese stage in Iceland from c.10 April until c.12 May in spring and c.30 August until c.31 Oct[...]
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H. Boyd, Auteur ; A. D. Fox, AuteurDans Wildfowl (54 2003)Three-bird flights (3BF) have been reported amongst seven species of geese: 12 populations of Branta and seven of Anser. The phenomenon has been recorded from mid-winter to the start of incubation, being most frequent and intense during the peri[...]
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H. Boyd, AuteurDans Wildfowl (50 1999)On 7 July 1989, three pairs of small Canada Geese Branta canadensis hutchinsii nesting on adjacent islets in a lake on Prince Charles Island (67.47 N, 76.12 W), in Foxe Basin, NWT, approached and moved after me as I waded out to inspect their ne[...]
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J. N. Kristiansen, Auteur ; A. J. Walsh, Auteur ; A. D. Fox, Auteur ; H. Boyd, Auteur ; D. A. Stroud, AuteurDans Wildfowl (50 1999)Based on data from seven successive years from the wintering grounds in Ireland and one year from the breeding grounds in West Greenland, the variation in the black striation on the abdomen and breast, the so-called belly barring, of the Greenla[...]
