pigargo-americano vs rabo-de-quilha

Haliaeetus leucocephalus compared with Quiscalus quiscula

Taxonomic Classification

Rank	pigargo-americano	rabo-de-quilha
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Aves (ave)	Aves (ave)
Order	Accipitriformes (Hawks & Eagles)	Passeriformes (Songbirds)
Family	Accipitridae (Hawks & Eagles)	Icteridae
Genus	Haliaeetus (Sea Eagles)	Quiscalus
Species	Haliaeetus leucocephalus	Quiscalus quiscula

Evolutionary Relationship

pigargo-americano and rabo-de-quilha share a common ancestor at the Class level: Aves. (ave)

View Class: Aves

Conservation Status

pigargo-americano

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

rabo-de-quilha

NE — Not Evaluated

Physical Characteristics

Attribute	pigargo-americano	rabo-de-quilha
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

pigargo-americano

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).

rabo-de-quilha

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, United Kingdom, and United States.

pigargo-americano

A ave nacional dos Estados Unidos e símbolo do sucesso conservacionista americano, a águia-careca tem uma envergadura de até 2,4 metros e habita florestas e zonas húmidas próximas de águas abertas em toda a América do Norte. Quase extinta na década de 1960 devido ao envenenamento por DDT e à caça, recuperou de forma notável após as proibições de pesticidas e a Lei das Espécies em Perigo.

rabo-de-quilha

<em>Quiscalus quiscula</em>, commonly known as the common grackle, is a passerine bird belonging to the genus Quiscalus within the family Icteridae. This adaptable species occupies various aerial, terrestrial, and aquatic environments, reflecting a broad ecological tolerance that has allowed it to thrive across a range of landscapes. Its documented range includes the United States as its primary stronghold, with additional records from Belgium, Denmark, Norway, and the United Kingdom, where individuals may appear as vagrants or established non-native populations. Common grackle is typically associated with open and semi-open habitats including agricultural fields, marshes, parks, and suburban areas. Biological traits of this species remain poorly documented in the scientific literature.