American Bald Eagle vs Common Flower Fly

Haliaeetus leucocephalus compared with Syrphus ribesii

Key Differences

• American Bald Eagle is Not Evaluated while Common Flower Fly is Least Concern.

Taxonomic Classification

Rank	American Bald Eagle	Common Flower Fly
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum	Chordata (động vật có dây sống)	Arthropoda (động vật Chân khớp)
Class	Aves (chim)	Insecta (côn trùng)
Order	Accipitriformes (bộ Ưng)	Diptera (Ruồi)
Family	Accipitridae (Hawks & Eagles)	Syrphidae
Genus	Haliaeetus (Sea Eagles)	Syrphus
Species	Haliaeetus leucocephalus	Syrphus ribesii

Evolutionary Relationship

American Bald Eagle and Common Flower Fly share a common ancestor at the Kingdom level: Animalia. (động vật)

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Common Flower Fly

LC — Least Concern

Physical Characteristics

Attribute	American Bald Eagle	Common Flower Fly
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

American Bald Eagle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

Common Flower Fly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States).

American Bald Eagle

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.

Common Flower Fly

<em>Syrphus ribesii</em> is a hoverfly in the family Syrphidae, order Diptera, commonly known as the common flower fly. This species is among the most frequently encountered hoverflies in its range and serves an important ecological role as a pollinator of flowering plants. The species is classified as Least Concern on the IUCN Red List. <em>Syrphus ribesii</em> is distributed across Europe and the United States, typically inhabiting gardens, hedgerows, woodland edges, and meadows where flowering plants are abundant. Adults are characterized by yellow and black banded abdomens that mimic the appearance of wasps or bees, providing protection from predators through Batesian mimicry. Adults feed on nectar and pollen, while larvae are predatory, feeding on soft-bodied insects such as aphids and thereby providing a natural pest control service in gardens and agricultural settings. The species is migratory in parts of its range. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States