□ = 1-15 March ○ =16-31 March ● = 0 birds ○ = 1-25 ○ = 26-50 ○ = 51-100 ○ = 101-200 ○ = 201-500 ○ = 501-1000 ○ = 1001-2000 ○ = 2001-4000 BULWER'S PETREL (Bulweria bulwerii) At-Sea Distribution and Abundance MARCH SI-CM-38 (REV. 9-65) CENTRAL PACIFIC OCEAN 30° H A W A I I KURE I. • MONDAY I. PEARL AND HERMES REEF LISIANI I. • LAYSAN I. • GARDNER PINNACLES • FRENCH FRIGATE SHOALS • NECKER • NIIBAUL • KAUAI I. • MAU I. • HAWAII I. 20° JOHNSTON-SAND I. 10° KINGMAN REEF • PALMYRA I. • WASHINGTON I. • PANNING L. CHRISTMAS I. 0° • ROWLAND I. • BAKER I. PHOENIX ISLANDS • CANTON I. ENDERBURY I. • BIRNIE I. • PHOENIX I. HULL I. • SYDNEY I. • GARDNER TOKELAU ISLANDS • ATAFU I. • NUKUNONO • FAKAOFU I. 10° 180°WEST 170° 160° 150°WEST 160° 150° 140° 130° 120° 110° 100° 90° 80° 70° 60° 50° 40° 30° 20° 10° 0° EQUATOR 100 200 300 400 500 STATUTE MILES JARVIS I. Malden I. • STARBUCK I. TONGAREVA I. CAROLINE I. SOUTH NORTH