Where has the Caspian Tern been recorded?

Hydroprogne caspia occurrence evidence comes from 194,718 records in 50 countries and territories, from 1790 to 2026. Most records come from Sweden.

• 194,718 records
• 50 places
• 149 years recorded
• Aves class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: July. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Records over time

Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.

Where Caspian Tern has been recorded

The countries below show where occurrence evidence exists for Caspian Tern. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.

Showing the top 40 of 50 places.

Related animals

Others in the family Laridae.

Lesser Black-backed Gull

4,046,434 records

Herring Gull

3,247,099 records

Black-headed Gull

1,123,276 records

Mew Gull

986,748 records

Common Tern

519,969 records

Great Black-backed Gull

493,641 records

Mediterranean Gull

263,862 records

Arctic Tern

232,790 records