Wildlife Clinic

Species

Herring gull

Larus smithsonianus

The big, pink-legged gull of winter beaches, which drops shellfish on rocks and roads to break them open.

An adult American herring gull standing in shallow water, white with pale grey wings tipped in black, pink legs and a yellow bill with a red spot near the tip.

Photo Laura Liedtke (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 56 to 66 cm long; wingspan about 1.4 m
Weight
About 800 to 1,500 g
Habitat
Beaches, harbours, landfills, lakes and reservoirs
Diet
Fish, crabs, clams, eggs, carrion and food scraps
In Georgia
A common winter visitor on the coast; fewer inland
Voice
A loud, laughing "kyow-kyow-kyow"
Rabies vector
No

Identification

Key marks
Large; pale grey back; black wingtips; pink legs; yellow bill with a red spot; young birds mottled brown for up to four years
Told apart from
Ring-billed gull, which is smaller with yellow legs and a ringed bill
Told apart from
Lesser black-backed gull, which has a darker back and yellow legs
Where to look
Beaches and harbours, November to March

Behaviour

Herring gulls drop clams and crabs from the air onto hard surfaces to break them. Chicks peck the red spot on the parent's bill to prompt it to bring up food, one of the classic studies of animal behaviour.

Why they matter

Herring gulls are scavengers that clean up beaches and harbours, and their behaviour has taught scientists a great deal about how instinct and learning work together in birds.

Reproduction and lifecycle

Nest — A scrape lined with grass on islands, beaches or rooftops
Eggs — Usually three
Incubation — About 28 to 30 days
Chicks — Fed by both parents
Flight — At about six to seven weeks
Maturity — Adult plumage at about four years
Lifespan — Wild birds over thirty years are recorded

Living around people

  • Fed gulls lose their fear of people and can become a nuisance; not feeding them keeps them wild.
  • Gulls tangled in fishing line or hooked need a rehabilitator; cutting the line and releasing them rarely helps.

Misconceptions

  • A brown gull is a different species. Young herring gulls are brown for several years before turning grey and white.

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
NotesWinteringWinteringAdults leavingYoung birds remainNesting farther northNestingChicksYoung flyingMoving southArrivingWinteringWintering

Where it lives

Recorded in 61 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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