
Pomarine Jaegers recorded per
party hr on the Honolulu Christmas Count, O'ahu, 1944-2014 (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). No Pomarine
Jaegers have been recorded after the outflow was closed in the 1980s. 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/