Adult Red-footed Boobies counted primarily at Kilauea Point NWR, Kaua'i,

breeding colony, as recorded on the Kapa'a Christmas Count 1972-2007 (see

Count Page). These data suggest cyclic trends, with a decline during the 1970s but an increase from 1980 through the 2000s.

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/