Wildlife Clinic

Species

Loggerhead sea turtle

Caretta caretta

The sea turtle that nests on Georgia's beaches every summer, returning to the coast where it hatched.

Two loggerhead sea turtle hatchlings crossing wet sand on a Georgia beach towards the sea.

Photo Dan Vickers (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
Shell usually 80 to 110 cm long
Weight
Usually 70 to 170 kg
Habitat
Warm coastal and ocean waters; nests on sandy beaches
Diet
Crabs, whelks and other shellfish, horseshoe crabs and jellyfish
In Georgia
Nests on the barrier-island beaches from May to August; young turtles feed in coastal waters
Rabies vector
No

Identification

Key marks
Reddish-brown shell; very large head with powerful jaws; flippers with two claws
Told apart from
Green sea turtle, which has a smaller, rounded head and a smoother, olive shell
Told apart from
Kemp's ridley, which is smaller, grey and nearly round
Where to look
Tracks on the beach at dawn in summer; heads at the surface offshore

Behaviour

Female loggerheads return to nest on the stretch of coast where they hatched, often decades earlier. They come ashore at night, dig a nest above the tide line, lay and return to the sea within an hour or two. Hatchlings emerge at night and head for the brightest horizon, which on a natural beach is the sea.

Why they matter

Loggerheads crush whelks and crabs and keep those populations in check, and their eggs bring ocean nutrients up onto the dunes, feeding the plants that hold beaches together. Georgia's beaches are an important part of their nesting range in the western Atlantic.

Reproduction and lifecycle

Nest — Dug in the beach above high tide by the female's hind flippers
Eggs — About 100 to 120 per nest, several nests a season
Incubation — About 55 to 60 days; sand temperature decides each hatchling's sex
Hatchlings — About 4.5 cm long; they swim offshore for years before returning to coastal waters
Maturity — At roughly 25 to 35 years
Lifespan — Many decades

Living around people

  • On nesting beaches, turn off or shield lights facing the sea at night. Hatchlings follow artificial light inland and die.
  • Fill in holes and remove beach furniture at night; both trap nesting females and hatchlings.
  • Never touch a nesting turtle or a hatchling. Let hatchlings make their own way to the sea.
  • A sea turtle stranded, injured or tangled on the beach needs a licensed wildlife rehabilitator at once; sea turtles are treated by specialist hospitals, which a rehabilitator can reach.
  • Sea turtles are protected under federal law in the United States.

Misconceptions

  • Hatchlings need to be carried to the water. The crawl across the sand is part of what prepares them to swim; carrying them can harm them.
  • A sea turtle on the beach by day is resting. Only nesting females come ashore, at night. One on the beach in daylight is in trouble.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesOffshoreOffshoreOffshoreAdults gathering off the coastNesting beginsNestingNesting; first hatchlingsNesting ends; hatchlings emergingHatchlings emergingLast hatchlingsOffshoreOffshore

Where it lives

Recorded in 21 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

Answer a few questions and you will get a specific answer for what you are looking at.

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