Gull-billed tern / Lachseeschwalbe (Gelochelidon nilotica)
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Wikipedia: Gull-billed tern Source: WIKIPEDIA 1200px-Gelochelidon_nilotica_vanrossemi.jpg
Observations
🔍 No documented observationDescription
Classification: Genus Gelochelidon (Gelochelidon); Family Gulls (Laridae)Geography: This bird appears across the great seas in the following continents: Europe, North America, South America, Africa, Asia.
General: Deutschland: Brut-, seltener Zugvogel RL 1
Vocalization:
Quite vocal and easily distinguished from most congeners. Mewing and sharp in tone, but not rattling or raucous like most terns. Other variants are series of "ke-ke-ke-ke", or the mewing sounds. [Link]
Seasonal behavior
Seldom seen here
More details at Vogelwarte.ch