Northern Prairie Wildlife Research Center
On one occasion 16 parasitic jaegers (Stercorarius parasiticus) landed at a single snow goose (Chen caerulescens) nest within 30 seconds of the departure of the incubating female. The extent of parasitic jaeger predation was much increased by disturbance in the nesting area of Canada geese (Branta canadensis), particularly by the presence of a man. In 1959 it was not unusual to count 30 or 40 jaegers within 100 yd (91.4 m) of a man in the blue goose colony.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/literatr/disturb/bibli123.htm
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Menlo Park, CA [caww54]
