Publications

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Lead determination in avian blood - application to a study of lead contamination in raptors from France

Marsh harriers and other raptors may become poisoned by ingesting lead gunshot in the flesh of their prey. Blood lead is a suitable indicator of exposure to lead. The method usually used in our labora...

Date
01 January 1993
Authors
Pain, D. J. and colleagues
Published in
International Journal of Environmental Analytical Chemistry
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Status of the hen harrier Circus cyaneus in Scotland in 1988–89

A sample survey of Hen Harriers in 1988-89 was based on 10-km squares according to their category of proof of breeding in 1968-72. From this sample the Scottish population was estimated at 570+/-150 p...

Date
01 January 1993
Authors
Bibby, C. J. & Etheridge, B.
Published in
Bird Study, 40 (1)
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The foods and feeding rates of Montagu's Harriers

Foods brought to the nest by Montagu's Harriers breeding within an area of intensive arable farmland in England are described. About 50% of prey identified from pellets and prey remains was small bird...

Date
01 January 1993
Authors
Underhill-Day, J. C.
Published in
Bird Study
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Disturbance to Waterfowl on Estuaries: Introduction

Date
01 January 1993
Authors
Davidson, N. and colleagues
Published in
Wader Study Group Bulletin
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Gulls associating with flocks of Brent Geese on farmland

Black-headed Culls (median n 15) and Common Gulls (3.5) associated with Brent Geese (median flock size 725) grazing winter wheat and grassland in winter and fed on invertebrates disturbed by the geese...

Date
01 January 1992
RSPB Authors
Dr Ron Summers
Authors
Summers, R. W.
Published in
Wildfowl
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Habitat use and site fidelity of Green Sandpipers

Between 1982 and 1991 Green Sandpipers were studied in mid-Hertfordshire through regular counts and observations of colour-ringed birds. Birds were present in the study area in every month of the year...

Date
01 January 1992
Authors
Smith, K. W. and colleagues
Published in
Bird Study
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Nest-site selection by golden eagles in Scotland

Date
01 January 1992
Authors
Watson, J. and colleagues
Published in
British Birds
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Patterns of contamination by organochlorines and mercury in the eggs of 2 river passerines in britain and ireland with reference to individual pcb congeners

Unhatched eggs were collected in 1988 and 1990 from nests of the Eurasian Dipper Cinclus cinclus and the Grey Wagtail Motacilla cinerea in Wales, eastern Scotland and south-western Ireland. Mercury co...

Date
01 January 1992
Authors
Ormerod, S. J. and colleagues
Published in
Environmental Pollution
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Seasonal, size- and age-related patterns in body-mass and composition of Purple Sandpipers

The masses of 3229 Purple Sandpipers Calidris maritima from Britain were analysed for differences related to age, season and size. First-year birds were lighter by 2 g. There was only a slight increas...

Date
01 January 1992
RSPB Authors
Dr Ron Summers
Authors
Summers, R. W. and colleagues
Published in
Ibis
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The breeding bird community of managed and unmanaged willow scrub at Leighton Moss, Lancashire

Coppiced willow supports a much higher density of breeding birds than unmanaged more mature willow. This appears to be because it retains richer vegetation cover, especially in the herb layer, and so ...

Date
01 January 1992
RSPB Authors
Prof Jeremy Wilson
Authors
Wilson, J.
Published in
Proceedings of the Royal Society of Edinburgh Section B-Biological Sciences
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