Texte disponible pour l'instant uniquement en anglais.
- Longueur
- 35–38 cm
- Envergure
- 95–110 cm
- Poids
- 225 g
Présence dans le détroit
Rare migrant.
Identification
Similar to a Sandwich Tern but more robust, longer legs and short, stout, all-black bill. Leisurely flight, similar to a gull, with broader wings than a Sandwich Tern, less forked tail and grey rump. Winter plumage includes white head with a dark ear patch. Juveniles are similar to a juvenile Sandwich Tern in the wing pattern, but with much plainer upperparts.
Déplacements
Observation of migrating birds from March to the middle of October, with peaks in 1st hf. April and 1st hf. August.
Reprises de bagues
Denmark (1).
Texte éditorial de Bioestrecho. Dernière révision : 8 septembre 2026.
Galerie
Alin, CC BY · 2026
Alin, CC BY · 2026
Yehor Yatsiuk, CC0 · 2016
Yehor Yatsiuk, CC0 · 2016
Yehor Yatsiuk, CC0 · 2016
Jan Ebr & Ivana Ebrová, CC BY · 2022
