The Expert Group Seals (EG-Seals) of the Trilateral Wadden Sea Cooperation estimates a total of 40,800 harbour seals in their newly published 2019 harbour seal report.

On 24-26 September 2019, scientists, managers, policy makers, NGOs and other stakeholders explored opportunities for cooperation and protection of migrating fish.

The recently published brochure "Wadden Sea Flyway Initiative: Linking the Wadden Sea World Heritage Site with tropical wetlands and the Arctic tundra" gives an overview about results of the flyway monitoring within the Wadden Sea Flyway Initiative.

In 2018-2019, 6,538 individuals were counted in the Danish-Dutch-German Wadden Sea and Helgoland.

A new analysis of the large scale bird count in 33 countries along the East Atlantic Flyway indicates that a large number of bird species using the Wadden Sea are not doing well.

Only native whales in the Wadden Sea - the focus of an international symposium held on 11 April 2019 was on harbour porpoises and their role in this tidal ecosystem.