Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: Yes. At least some populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: Yes. At least some populations of this species make annual migrations of over 200 km.
Migrates between nesting beaches and marine waters. At least some temperate zone nesters migrate to tropical waters after the nesting season (Dodd 1990). Females that nest on east coast of Florida migrate to the Gulf of Mexico and West Indies for non-nesting periods. Some individuals in the southeastern U.S. move north in spring (e.g., see Morreale and Standora, no date), south as fall approaches; others apparently remain in Florida waters year-round. Hatchlings from the southeastern U.S. apparently enter drift lines and ride currents to Europe and the Azores and back (Dodd 1990). MtDNA data confirm that juveniles occurring in pelagic habitats of the eastern Atlantic (Azores, Madeira) are derived from nesting populations in the southeastern United States and adjacent Yucatan Peninsula in Mexico (Bolten et al. 1998).
MtDNA data indicate that stranded individuals along foraging habitat in the northeastern United States from Massachusetts to Virginia originated from three demographically independent nesting areas: northeast Florida/North Carolina, southern Florida, and Quintana Roo (Mexico) (Rankin-Baransky et al. 2001).
MtDNA data indicate that young occurring along the coast of Baja California derive from nesting areas in Japan and Australia (B. Bowen et al. 1995, Proc. Natl. Acad. Sci. 92:3731-3734); evidently trans-Pacific migrations occur, encompassing several years.
In North Carolina, within a single year, most multiple-nesting females confined their nesting activities within 4.8 km (Webster and Cook 2001).