pigargo-americano vs Common Field Horsetail

Haliaeetus leucocephalus compared with Equisetum arvense

Key Differences

pigargo-americano is Not Evaluated while Common Field Horsetail is Least Concern.

Taxonomic Classification

Rank	pigargo-americano	Common Field Horsetail
Kingdom	Animalia (Animals)	Plantae (plantas)
Phylum	Chordata (cordados)	Tracheophyta
Class	Aves (ave)	Polypodiopsida (Polypodiopsida)
Order	Accipitriformes (Hawks & Eagles)	Equisetales (Equisetales)
Family	Accipitridae (Hawks & Eagles)	Equisetaceae
Genus	Haliaeetus (Sea Eagles)	Equisetum
Species	Haliaeetus leucocephalus	Equisetum arvense

Conservation Status

pigargo-americano

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Common Field Horsetail

LC — Least Concern

Physical Characteristics

Attribute	pigargo-americano	Common Field Horsetail
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).

Common Field Horsetail

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 5 distinct biome types spanning the Afrotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Mauritius), Asia (Iran, Taiwan), Europe (9 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Brazil).

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.

Common Field Horsetail

The Common Field Horsetail (<em>Equisetum arvense</em>) is a vascular plant belonging to the genus Equisetum within the family Equisetaceae. It is one of the most widespread and recognisable of the horsetail species, characterised by its jointed, hollow stems and whorls of slender branches. The species is found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, spanning the Afrotropic and Palearctic biogeographic realms. Its geographic distribution is exceptionally broad, encompassing Africa including Mauritius, Asia including Iran and Taiwan, nine European countries, North America including Canada, Mexico, and the United States, Oceania including Australia and New Zealand, and South America including Brazil. <em>Equisetum arvense</em> is assessed as Least Concern on the IUCN Red List. The plant often colonises disturbed soils and is considered a persistent weed in agricultural settings. Biological traits beyond its distinctive morphology remain poorly documented in the scientific literature.