Pigeon des Comores vs Pigeon biset

Columba pollenii compared with Columba livia

Key Differences

• Pigeon des Comores is Near Threatened while Pigeon biset is Least Concern.

Taxonomic Classification

Rank	Pigeon des Comores	Pigeon biset
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (oiseau)	Aves (oiseau)
Order same	Columbiformes (Pigeons & Doves)	Columbiformes (Pigeons & Doves)
Family same	Columbidae	Columbidae
Genus same	Columba	Columba
Species	Columba pollenii	Columba livia

Evolutionary Relationship

Pigeon des Comores and Pigeon biset share a common ancestor at the Genus level: Columba.

Conservation Status

Pigeon des Comores

NT — Near Threatened

Pigeon biset

LC — Least Concern

Population: ~260.0M

Trend: Stable →

Physical Characteristics

Attribute	Pigeon des Comores	Pigeon biset
Diet	—	Herbivore
Average Lifespan	—	6 years
Average Length	—	33 cm
Average Weight	—	300 g

Habitat & Geographic Range

Pigeon des Comores

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Pigeon biset

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and deserts and xeric shrublands, among 4 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (24 countries), Asia (16 countries), Europe (21 countries), North America (21 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Pigeon des Comores

<em>Columba pollenii</em>, the Comoro pigeon, is a medium-sized frugivorous pigeon in the family Columbidae, endemic to the Comoro Islands archipelago in the western Indian Ocean, where it occurs across the main islands including Grande Comore, Anjouan, Mohéli, and Mayotte. The species inhabits dense humid forest from lowland to montane elevations, depending on intact native forest for roosting, nesting, and foraging. It is a robust, predominantly dark-plumaged pigeon with metallic green and purple iridescence on the upperparts and a pale grey underside. Biological traits such as precise average lifespan, body length, and weight remain poorly documented in consolidated scientific literature. Like many island pigeons, <em>Columba pollenii</em> feeds primarily on fruits and seeds, contributing to forest regeneration through seed dispersal. The primary threats to the species are progressive deforestation for agriculture, charcoal production, and firewood collection, which continue to fragment and reduce native forest across the Comoro Islands. Hunting for food also poses a localized threat. <em>Columba pollenii</em> is assessed as Near Threatened by the IUCN, reflecting ongoing habitat degradation and population pressure across its restricted island range in the Comoros.

Pigeon biset

Among the world's most successful birds, rock pigeons are native to sea cliffs and caves of Europe, North Africa, and South Asia but have been domesticated for thousands of years and introduced globally to every urban center on Earth. Their exceptional homing ability — navigating thousands of kilometers using magnetic fields, sun position, and landmarks — has made them vital military messengers and racing sport birds. Today, feral populations inhabit every major city worldwide.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway