A survey of the ducks breeding at Loch Leven in 1966

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H Boyd
C R G Campbell

Abstract

Seven species of ducks nested on Loch Leven in 1966. Seven hundred and five nests were found, nearly all on one island, of 105 acres: Tufted Duck 323, Mallard 285, Gadwall 41, Wigeon 41, Teal 9, Shoveler 6, and 5 broods of Shelducks. About two-thirds of the nests of dabbling ducks and a third of the Tufted Ducks' nests were known to have been successful. Predation by Jackdaws caused most egg losses, which were heaviest in June. Rough estimates from changes in brood-size suggest that not more than 1,900 young ducks reached the flying stage, about three-fifths of those hatched.

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How to Cite
Boyd, H., & Campbell, C. R. G. (1966). A survey of the ducks breeding at Loch Leven in 1966. Wildfowl, 36–42. Retrieved from https://tidsskrift.dk/Wildfowl/article/view/155614
Issue
The Wildfowl Trust Eighteenth Annual Report
Section
Artikler

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