Great Spotted Cuckoo, Clamator glandarius, is a species of cuckoo found in heathland and shrub ecosystems.

Clamator glandarius has a breeding population size of 82000-247000 pairs and a breeding range size of 469000 square kilometres in the EU27. The breeding population trend in the EU27 is Increasing in the short term and Increasing in the long term.

The EU population status of Clamator glandarius was assessed as Secure, because the species does not meet any of the IUCN Red List criteria for threatened or Near Threatened, or the criteria for Depleted or Declining (the EU27 population or range has not declined by 20% or more since 1980).