Pygmy Cormorant vs European Shag

In short

The Pygmy Cormorant and European Shag can be distinguished by size and plumage details. The Pygmy Cormorant is smaller with a more compact build, while the European Shag is larger and often shows a distinctive glossy green sheen in breeding plumage. Both species are found in aquatic environments but differ in their specific habitat preferences.

Identification tips

1. Size and structure: Look for the smaller size and more compact build of the Pygmy Cormorant. 2. Plumage: Check for the glossy greenish sheen on the European Shag during the breeding season. 3. Habitat: Note the environment; Pygmy Cormorants are more likely in freshwater habitats, while European Shags are coastal. 4. Crest: In breeding season, the European Shag may show a noticeable crest.

Size

The Pygmy Cormorant is notably smaller and more compact than the European Shag, which is larger and more robust.

Plumage

Pygmy Cormorants have a dark brown to black plumage with a less glossy appearance, while European Shags in breeding plumage exhibit a glossy greenish-black sheen. The European Shag also has a more elongated neck and a distinctive crest during the breeding season.

Behaviour

Both species are adept swimmers and divers, but the European Shag often forages in more open sea areas compared to the Pygmy Cormorant, which is more frequently found in inland waters.

Habitat

Pygmy Cormorants are typically found in freshwater lakes, rivers, and marshes, while European Shags prefer coastal and marine environments, often seen on rocky shores and cliffs.

Voice

Vocalizations are not a primary distinguishing feature between these species in the field, as both are relatively silent, especially when compared to other bird groups.