Sanderlings recorded per party
hr on the Honolulu Christmas Count, O'ahu,
1944-2014 (see Count
Page). A substantial peak in numbers
during the 1960s may relate to habitat-use practices (as may a decline in
numbers noted at Waipio). 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/