Sandwich Tern (Thalasseus sandvicensis)
Illustration redrawn by AI from a real photograph

Sandwich Tern

Thalasseus sandvicensis (Latham, 1787)

36–41 cmLength100 cmWingspan200 gWeight

It has a yellow tip to its black bill and a fluffy black crest at the back of the head.

Busiest months: April · Most records: United States, United Kingdom, Spain

Looks like Chinese Crested Tern, Lesser Crested Tern

Least Concern

How to identify

Field marks

  1. Bill slender, pointed and black with a yellow tip
  2. Black crest fluffy
  3. Upperparts pale silver-gray; underparts white
  4. Legs short and black

Male, female and young

Juvenile has a blackish bill without a yellow tip, sometimes yellow at the base of the bill, and scaly markings on the back and wings.

Voice

Loud, rough calls like “kear-ik” or “kerr ink”.

Similar species

Where and when it's recorded

Busiest months: April · Most records: United States, United Kingdom, Spain

Sandwich Tern has been recorded at 1,267 of the 8,276 birding hotspots we track, in 133 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Fort De Soto ParkUnited States13,256 records
  2. Bolivar Flats Shorebird SanctuaryUnited States4,917 records
  3. Rollover PassUnited States4,270 records
More places
  1. South Padre Is. – WBC/Conv. Center/Laguna Madre TrailUnited States4,055 records
  2. Desembocadura del Guadalhorce – ÁreaSpain3,403 records
  3. Minsmere RSPB ReserveUnited Kingdom3,230 records
  4. Huguenot Memorial City ParkUnited States2,617 records
  5. San Carlos Bay/Bunche Beach PreserveUnited States2,512 records
  6. South Padre Is. – Birding and Nature CenterUnited States2,450 records
  7. PN Sintra-Cascais – Cabo RasoPortugal2,319 records

Countries and regions with the most records

United StatesUnited KingdomSpainPortugalSouth AfricaPolandIrelandFrance

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The Sandwich tern (Thalasseus sandvicensis) is a tern in the family Laridae. It is very closely related to the lesser crested tern (T. bengalensis), Chinese crested tern (T. bernsteini), Cabot's tern (T. acuflavidus), and elegant tern (T. elegans) and has been known to interbreed with both elegant and lesser crested terns. It breeds in the Palearctic from Europe to the Caspian Sea, and winters in the Mediterranean and on the coasts of Africa, India, and Sri Lanka.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Sandwich Tern?

The Sandwich Tern is about 36–41 cm long, with a wingspan of 100 cm and weighs around 200 g.

Where does the Sandwich Tern live?

Its breeding range: Palearctic, Africa: coastal northwest to southeastern Europe from British Isles and Baltic Sea to eastern Iberian Peninsula, Mediterranean, Black and eastern, southern Caspian seas. It is most often recorded in United States, United Kingdom and Spain.

When is the best time to see the Sandwich Tern?

At the hotspots we track, it is recorded most in April (Northern Hemisphere).

Is the Sandwich Tern endangered?

The IUCN Red List classifies the Sandwich Tern as Least Concern.

What does the Sandwich Tern eat?

Main food: Fish, shrimp & shellfish.

What family is the Sandwich Tern in?

It belongs to the family Gulls, Terns, Skimmers (Laridae), order Charadriiformes.

At a glance

Length
36–41 cm
Wingspan
100 cm
Weight
200 g
Habitat
Ocean
Diet
Fish, shrimp & shellfish
Lifestyle
Feeds in the air
Migration
Migratory
Conservation
Least Concern
More measurements
Wing
288 mm
Tail
129 mm
Bill
60 mm
Tarsus
26 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Palearctic, Africa: coastal northwest to southeastern Europe from British Isles and Baltic Sea to eastern Iberian Peninsula, Mediterranean, Black and eastern, southern Caspian seas

Breeding range, IOC World Bird List 15.2

Classification

Genus
Thalasseus

Other birds in the genus Thalasseus

Sandwich Tern

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by Andrey Kuzmin. ↗

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