Long-billed Curlew
Long-billed Curlew
Numenius americanus
At a Glance
This incredibly long-billed sandpiper is the largest of our shorebirds; but more often than not, it is seen away from the shore. It spends the summer on the grasslands of the arid west, appearing on coastal mudflats only in migration and winter, and even then likely to be on prairies instead. It often occurs alongside the Marbled Godwit, which is very similar in size and color pattern; but the godwit's bill curves up, not down.
All bird guide text and rangemaps adapted from by Kenn Kaufman漏 1996, used by permission of Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Category
Sandpiper-like Birds, Sandpipers
IUCN Status
Least Concern
Habitat
Coasts and Shorelines, Fields, Meadows, and Grasslands, Freshwater Wetlands, Lakes, Ponds, and Rivers, Saltwater Wetlands, Shrublands, Savannas, and Thickets
Region
California, Florida, Northwest, Plains, Rocky Mountains, Southeast, Southwest, Texas, Western Canada
Behavior
Flap/Glide, Running
Population
140.000
Range & Identification
Migration & Range Maps
Only a short-distance migrant, most wintering in southern United States and northern Mexico.
Description
23" (58 cm). A very large sandpiper with a remarkably long curved bill (length varies; some are not so extreme). Warmer brown than Whimbrel, and lacks strong head stripes. In flight, shows bright cinnamon in wings.
Size
About the size of a Crow, About the size of a Mallard or Herring Gull
Color
Black, Brown, Red, Tan
Wing Shape
Broad, Pointed, Tapered
Tail Shape
Rounded, Short, Square-tipped, Wedge-shaped
Songs and Calls
A clear curleee; a sharp whit-whit, whit, whit, whit, whit.
Call Pattern
Flat, Rising
Call Type
Whistle
Habitat
High plains, rangeland. In winter, also cultivated land, tideflats, salt marshes. Breeding habitat is mostly native dry grassland and sagebrush prairie; may favor areas with some damp low spots nearby, to provide better feeding area for the young. May nest in pastures that are not too heavily grazed, rarely in agricultural fields. In migration and winter often in farm fields, marshes, coastal mudflats, in addition to grasslands.
Sign up for 爆料公社's newsletter to learn more about birds like the Long-billed Curlew
Behavior
Eggs
4, rarely 3-5. Pale buff to olive-buff, evenly spotted with brown and dark olive. Incubation is by both parents, 27-30 days. Incubating bird may sit motionless on nest even if approached closely.
Young
Downy young leave nest soon after hatching. Both parents tend young, often leading them to marshy or damp area for better feeding; young feed themselves. Age of young at first flight varies, 32-45 days.
Feeding Behavior
Forages by walking rather quickly over grassland or mudflats, using long bill to reach ahead and pick up insects or to probe just below the surface of mud or soil. On coastal mudflats, often probes into small burrows for mud crabs, ghost shrimps, and other creatures.
Diet
Mostly insects. On grasslands, feeds mostly on insects, including beetles, grasshoppers, caterpillars, many others; also eats spiders, toads, and sometimes the eggs and young of other birds. May eat many berries at times. In coastal areas, also eats crabs, crayfish, mollusks, marine worms, other large invertebrates.
Nesting
Male displays over nesting territory with spectacular undulating flight, fluttering higher and then gliding lower, while giving loud ringing calls. Nest site is on ground on open prairie, usually in rather dry surroundings. On mostly featureless terrain, often chooses site close to conspicuous rock, shrub, pile of cow manure, or other object. Nest is shallow scrape in ground, usually with sparse lining of grass, weeds; may have slight rim built up around edge.
Climate Vulnerability
Conservation Status
Was once much more common and widespread; in the mid-1800s, occurred as a common migrant along much of the Atlantic Coast. Hunting of wild game for market caused a serious decline in this species and other shorebirds in the late 1800s. In more recent decades, has decreased in many parts of its nesting range as grassland has been converted to agriculture.
Climate Threats Facing the Long-billed Curlew
Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.