American Bald Eagle vs Common Sawfly

Haliaeetus leucocephalus compared with Cladius grandis

Key Differences

• American Bald Eagle is Not Evaluated while Common Sawfly is Near Threatened.

Taxonomic Classification

Rank	American Bald Eagle	Common Sawfly
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)	Hymenoptera (Bộ Cánh màng)
Family	Accipitridae (Hawks & Eagles)	Tenthredinidae
Genus	Haliaeetus (Sea Eagles)	Cladius
Species	Haliaeetus leucocephalus	Cladius grandis

Evolutionary Relationship

American Bald Eagle and Common Sawfly 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 Sawfly

NT — Near Threatened

Physical Characteristics

Attribute	American Bald Eagle	Common Sawfly
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 Sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (4 countries) and North America (Canada, United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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 Sawfly

<em>Cladius grandis</em> is a sawfly in the family Tenthredinidae, with a Holarctic distribution spanning Europe and North America, documented from Canada, the United States, and multiple European countries. The species is primarily associated with rose family shrubs and trees, with larvae feeding externally on the leaves of cultivated and wild roses (<em>Rosa</em> spp.) as well as related plants. Larvae are pale green and slug-like in appearance, resembling the related rose slug sawfly larvae, and feed by skeletonizing leaves, stripping the upper epidermis and leaving a characteristic translucent "window" pattern that later turns brown. Infestations can cause cosmetic damage to cultivated roses and reduce the vigor of heavily attacked plants. Adults are small, black, wasp-like insects. The species is assessed as Near Threatened on the IUCN Red List, though the reasons for this designation and supporting population trend data specific to this species are not extensively documented in widely available sources. It typically produces multiple generations per year under favorable conditions in temperate climates. Pupation occurs in the soil, and overwintering takes place as prepupae or pupae. Biological traits such as average lifespan, body measurements, and comprehensive dietary data beyond host plant leaf tissue remain poorly documented in standardized ecological databases.

Shared Countries

Both species can be found in 5 countries:

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