Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
□ = 1-15 April
○ = 6-31 April
○ = 0 birds
④ = 1-10
○ = 11-25
○ = 26-50
○ = 50-100
● = 101-500*
● = 500+ *
APRIL
SI-MWH-38 (REV. 9-85)
CENTRAL PACIFIC OCEAN
KURE I.
MIDWAY I.
PEARL AND HERMES REEF
LISIANSKI I.
LAYSAN I.
GARDNER PINNACLES
FRENCH FRIGATE SMOALS
NECKER I.
NIHOA I.
KAUAI I.
OAHU I.
MAUI I.
HAWAII I.
JOHNSTON ISLAND
KINGMAN REEF
PALMYRA I.
WASHINGTON I.
FANNING I.
CHRISTMAS I.
HOWLAND I.
BAKER I.
PHOENIX ISLANDS
CANTON I.
ENDERBURY I.
MC KEAN I.
BIRNIE I.
PHOENIX I.
HULL I.
SYDNEY I.
GARDNER
TOKELAU ISLANDS
ATAFU I.
NUKUNONO I.
FAKAFOU I.
JARVIS I.
MALDEN I.
STARBUCK I.
TONGAREVA I.
CAROLINE I.
180° WEST
EQUATOR
60°
150° WEST
Great Frigatebird