White Terns recorded per party hr on the Honolulu Christmas Count, O'ahu, 1944-

2014 (see Count Page), showing the increasing trend, in winter abundance at least,

since this species colonized Honolulu in the 1970s.


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/