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THE POPULATION, ECOLOGY AND CONSERVATION OF THE BLACK OYSTERCATCHER HAEMATOPUS MOQUINI
Summary Summers, R. W. & Cooper, J. 1977. The population, ecology and conservation of the Black Oystercatcher Haematopus moquini. Ostrich 48:28-40. The population of Black Oystercatchers HaematopusExpand
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Life cycle and population ecology of the flounder Platichthys flesus (L.) in the Ythan estuary, Scotland
Summary O, I and II group flounders showed a regular increase in length and weight between April and September, but did not grow during the winter months. These immature fish showed highest conditionExpand
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Assessment of bird collisions with deer fences in Scottish forests
Bird collisions along 135 km of deer fences were monitored for I year at 27 sites in the Scottish Highlands. The majority (93%) of recorded collisions were by grouse species and at least 16% wereExpand
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Tidal and sexual differences in the diet of Purple Sandpipers Calidris maritima in Scotland
The analysis of the gut contents of Purple Sandpipers from eastern and northern Scotland showed that most of the diet at low tide consisted of molluscs, particularly littorinids (winkles), but alsoExpand
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Regional, seasonal and annual variations in the structure of Purple Sandpiper Calidris maritime populations in Britain
Samples of Purple Sandpipers were captured around the coasts of Britain. Analysis of their bill-length distributions enabled the sex ratios and percentages of ‘long-billed’ and ‘short-billed’ birdsExpand
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Factors related to breeding production of Brent Geese Branta b. bernicla and waders (Charadrii) on the Taimyr Peninsula
There are large cyclic variations in the breeding success of Brent Geese; we have examined 3 hypotheses in an attempt to explain these. Spring feeding conditions play no more than a minor role inExpand
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Use of grassland and field selection by brent geese Branta bernicla.
(1) Around Scolt Head Island, north Norfolk, 43 7%, 57-7% and 65 5% of the cumulative total number of observations of brent geese were made on grass fields during 1986-87, 1987-88 and 1988-89,Expand
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POPULATION, BIOMETRICS AND MOVEMENTS OF THE SANDERLING CALIDRIS ALBA IN SOUTHERN AFRICA
Summary Summers, R. W., Underhill, L. G, Waltner, M. & Whitelaw, D. A. 1987. Population, biometrics and movements of the Sanderling Calidris alba in southern Africa. Ostrich 58:24-39. The SanderlingExpand
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