A spokesman for the environment ministry said today in Tallinn that some of the dead birds -- mostly snow geese, seagulls and swans -- had ingested oil. Others had oil on their feathers.
The worst-affected area is a 35-kilometer stretch of coast in the north-west of the country, near the Gulf of Finland.
A long oil slick was first noticed on 28 January. The Estonian government has ordered an investigation into the incident.
(dpa, AP)