Pomarine Jaegers recorded per party hr on the Honolulu
Christmas Count, O'ahu,
1944-2007 (see Count
Page). Higher numbers from the late 1950s to
the early
1980s reflect attraction of this and other seabird
species to a wastewater outflow off
Sand Island. Variation in count totals during this
period reflects daily variation in the
presence and/or visibility of jaegers from shore,
dependent on outflow, current, and
weather conditions (see text).
Species account
Graphs of Christmas Count data developed as part of
The Birds of the Hawaiian
Islands: Occurrence, History, Distribution, and
Status by Robert L. Pyle and Peter Pyle http://hbs.bishopmuseum.org/birds/rlp-monograph/2009/