World Bird List

Species factsheet
Common Tern (Sterna hirundo)

Order: Sterna hirundo
Family: Gulls, Terns, Skimmers (Laridae)

Danske navn: Fjordterne

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
hirundo North America to n South America, n and w Africa, Europe to nw Siberia and w China
tibetana w Himalayas to w Mongolia and Tibet
minussensis c Siberia to n Mongolia
longipennis ne Siberia to ne China