J. Kear

Publications55
h-index15
Citations694
Highly Influential Citations27
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The agricultural importance of wild goose droppings
Production of manure per bird per day was estimated to range from 175 gms. for the English Canada Goose to 58 gms. for the Barnacle Goose. Droppings were analysed to determine their chemical… Expand
  • 48
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The history of potato-eating by wildfowl in Britain
The development of potato-eating and swede turnip-eating by wildfowl is linked to agricultural changes and climatic conditions in Britain. The tradition of taking waste potatoes from harvested fields… Expand
  • 22
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Notes on the nutrition of young waterfowl, with special reference to slipped‐wing
  • 12
  • 3
Weights and measurements of Bewick's Swans during winter
Weights of Bewick’s Swans Cygnus colum­ bianus bew ickii and the conspecific Whistling Swan Cygnus columbianus colum­ bianus have been examined previously as an index of condition. Evans et al.… Expand
  • 30
  • 2
The experimental assessment of goose damage to agricultural crops
Abstract The interaction of British agriculture and wild geese is considered, with particular reference to the problem of whether grazing damage is caused to cereals and grass. Clipping experiments… Expand
  • 43
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Studies on the development of young Tufted Duck
When the Wildfowl Trust began a breed­ ing biology study on ducks at Loch Leven, Kinross (Boyd and Campbell 1966), this became associated with the International Biological Programme’s Project there.… Expand
  • 18
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The Internal Food Reserves of Hatching Mallard Ducklings
  • 57
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The White-winged Wood Duck
The conservation of the rare White-winged Wood Duck Cairina scutulata in the wild, and its potential for breeding in captivity, are examined. The survival of the species appears to depend on the… Expand
  • 16
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The systematic status of the Cape Barren Goose as judged by its photo-responses
The median date of egg-laying of various wildfowl species in the Wildfowl Trust's collection at Slimbridge, England, is plotted against the mid-latitude of their natural breeding range. The result… Expand
  • 4
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The hand rearing of young Blue Duck
The Blue Duck Hymenolaimus malacorhynchos of New Zealand is an isolated species of uncertain affinities and is still largely unstudied, both in captivity and in the wild. I t lives in fast-moving… Expand
  • 7
  • 1