Wilson's snipe

Wilson's snipe (Gallinago delicata) is a small, long‑bill wading bird of the family Scolopacidae, native to North America. It is one of several species commonly referred to as “snipe” and was formerly treated as a subspecies of the common snipe (Gallinago gallinago).

Taxonomy and Nomenclature

• Kingdom: Animalia
• Phylum: Chordata
• Class: Aves
• Order: Charadriiformes
• Family: Scolopacidae
• Genus: Gallinago
• Species: G. delicata

The species was described by Alexander Wilson, an American ornithologist, in 1811. The common name “Wilson’s snipe” honors his contribution to North American ornithology.

Physical Description

• Size: Length 22–30 cm (8.7–11.8 in); wingspan 38–44 cm (15–17 in); weight 55–140 g.
• Plumage: Cryptic brown mottling with fine white and dark streaks, providing camouflage in marsh vegetation. The belly is lighter, often with a faint reddish wash.
• Bill: Long, straight, and slightly decurved, adapted for probing soft mud.
• Legs: Short, pale pink to grayish.
• Sexual Dimorphism: Minimal; males and females are virtually identical in plumage and size.
• Distinctive Features: A narrow, dark lateral stripe on the throat and a subtle “white trailing edge” on the outer primary feathers, useful for field identification.

Distribution and Habitat

• Breeding Range: Central and western Canada, the northern United States (including the Great Plains and intermountain regions), and parts of Alaska. Breeding occurs in wet meadows, marshes, tundra tundra, and other moist grasslands.
• Wintering Range: Southern United States, Mexico, Central America, and the Caribbean. Some individuals migrate to the Pacific coast of California and the Gulf Coast.
• Habitat Preference: Shallow wetlands with emergent vegetation, such as cattails, rushes, and sedges. They favor drier mucky or grassy marsh edges during migration.

Behavior and Ecology

• Foraging: Primarily nocturnal or crepuscular; probes soft mud and shallow water for insects, larvae, earthworms, and other invertebrates. Occasionally consumes seeds and small amphibians.
• Vocalizations: Emits a distinctive “peent” call during flight and a series of sharp “churr” notes while feeding.
• Display: Males perform a “winnowing” display during the breeding season, producing a drumming sound by vibrating the outer tail feathers in flight—a key field characteristic.
• Territoriality: Males establish and defend small territories on breeding grounds; territory size varies with habitat quality.

Reproduction

• Courtship: Involves aerial displays, “winnowing” flights, and ground-based “tussle” displays.
• Nesting: Ground nests are shallow depressions lined with vegetation, concealed in dense marsh vegetation or short grass.
• Clutch Size: Typically 3–4 eggs, pale brown with reddish spots.
• Incubation: Primarily performed by the female; lasts about 18–20 days.
• Chick Development: Precocial; chicks leave the nest shortly after hatching and are fed by both parents. Fledging occurs within 12–14 days.

Migration

Wilson’s snipe is a long‑distance migrant. Populations breeding in the northern latitudes travel southward in late summer and return north in early spring. Migration routes often follow major river valleys and coastal corridors. Stopover sites include wetlands, agricultural fields, and estuarine mudflats.

Conservation Status

• IUCN Red List: Least Concern (LC). The species has a large range and a stable or slowly increasing population.
• Threats: Habitat loss due to wetland drainage, agricultural intensification, and urban development. Hunting pressure is minimal in most regions, as snipe are not a primary game species.
• Management: Conservation of North American prairie pothole wetlands, preservation of migratory stopover habitats, and regulation of wetland drainage have benefitted the species.

Similar Species

• Common snipe (Gallinago gallinago): Overlaps in range in parts of the United States; distinguished by subtle differences in tail feather structure and vocalizations.
• Lesser yellow‑legged snipe (Gallinago solitaria): Found in the western United States; larger size and a more robust bill differentiate it from Wilson’s snipe.

References

1. American Ornithological Society (AOS). Check-list of North American Birds. 2023 edition.
2. BirdLife International. “Gallinago delicata”. IUCN Red List of Threatened Species. 2022.
3. Wilson, A. (1811). “Descriptions of various new species of Birds”. Journal of the Academy of Natural Sciences.
4. Sibley, D. A., & Monroe, B. (1990). Distribution and Taxonomy of the Birds of the World. Yale University Press.

This entry summarizes current, peer‑reviewed knowledge of Wilson’s snipe as of 2026.