Black Clock vs Gray/Purple Heron

Pterostichus madidus compared with Ardea cinerea

Taxonomic Classification

Rank	Black Clock	Gray/Purple Heron
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Coleoptera (Beetles)	Pelecaniformes (Pelecaniformes)
Family	Carabidae	Ardeidae
Genus	Pterostichus	Ardea
Species	Pterostichus madidus	Ardea cinerea

Evolutionary Relationship

Black Clock and Gray/Purple Heron share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black Clock

LC — Least Concern

Gray/Purple Heron

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Black Clock	Gray/Purple Heron
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	95 cm
Average Weight	—	1.5 kg

Habitat & Geographic Range

Black Clock

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Switzerland.

Gray/Purple Heron

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries).

Black Clock

The Black Clock (Pterostichus madidus) is a species in the genus Pterostichus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats. Distributed across Belgium, Denmark, Norway, Sweden, and Switzerland.

Gray/Purple Heron

A large, elegant wading bird reaching up to 1 meter in height, gray herons inhabit wetlands, rivers, lakes, and coastal areas across Europe, Asia, and Africa. Patient, solitary hunters, they stand motionless for long periods before striking fish, frogs, and small mammals with lightning-fast dagger bill strikes. They nest colonially in tall trees in rookeries called heronries, sometimes shared with other colonial waterbirds. Widely distributed and of Least Concern globally.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden