Common corncockle vs Common Greenshank

Agrostemma githago compared with Tringa nebularia

Key Differences

Common corncockle is Critically Endangered while Common Greenshank is Least Concern.

Taxonomic Classification

Rank	Common corncockle	Common Greenshank
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Caryophyllales (Caryophyllales)	Charadriiformes (Charadriiformes)
Family	Caryophyllaceae	Scolopacidae
Genus	Agrostemma	Tringa
Species	Agrostemma githago	Tringa nebularia

Conservation Status

Common corncockle

CR — Critically Endangered

Common Greenshank

LC — Least Concern

Physical Characteristics

Attribute	Common corncockle	Common Greenshank
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common corncockle

Habitat

Found across multiple habitat types including montane grasslands and shrublands, tropical and subtropical moist broadleaf forests, and temperate coniferous forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Lesotho), Asia (7 countries), Europe (24 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Brazil, Chile). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Greenshank

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Taiwan.

Common corncockle

<em>Agrostemma githago</em>, commonly known as common corncockle, is an annual flowering plant in the family Caryophyllaceae. Once a widespread weed of cereal crops across Europe, Asia, and beyond, this species is now Critically Endangered on the IUCN Red List due to the dramatic decline caused by modern agricultural practices, particularly improved grain cleaning and herbicide use. Corncockle is a tall, slender plant covered in silky white hairs, bearing large, solitary pink to purple flowers with distinctive dark veining. Its seeds contain toxic saponin compounds called githagins, which historically contaminated grain supplies. The species now survives primarily in wildflower conservation areas, seed banks, and traditional farmland conservation schemes. It typically grows in open, disturbed arable soils with full sun exposure. Biological traits of this species remain poorly documented in the scientific literature.

Common Greenshank

<em>Tringa nebularia</em>, commonly known as the common greenshank, is a migratory wading bird belonging to the genus Tringa within the family Scolopacidae. This species occupies various aerial, terrestrial, and aquatic environments and has a documented range that includes Belgium, Denmark, Norway, Sweden, and Taiwan, reflecting its status as a long-distance migrant that breeds in northern Europe and winters across a broad range. Common greenshank is assessed as Least Concern on the IUCN Red List. The species is typically found along the edges of lakes, rivers, estuaries, and mudflats, where it forages for invertebrates and small fish using its slightly upturned bill. Biological traits of this species remain poorly documented in the scientific literature.