Bird GuideBlackbirds and OriolesRed-winged Blackbird

At a Glance

Among our most familiar birds, the Red-winged Blackbird seems to sing its nasal songs in every marsh and wet field from coast to coast. They are notably bold, and several will often attack a larger bird, such as a hawk or crow, that flies over their nesting area. The red shoulder patches of the male, hidden under body feathers much of the time, are brilliantly displayed when he is singing. Outside the nesting season, Red-winged Blackbirds sometimes roost in huge concentrations.
Category
Blackbirds and Orioles, Perching Birds
IUCN Status
Least Concern
Habitat
Coasts and Shorelines, Fields, Meadows, and Grasslands, Forests and Woodlands, Freshwater Wetlands, Lakes, Ponds, and Rivers, Saltwater Wetlands, Shrublands, Savannas, and Thickets, Urban and Suburban Habitats
Region
Alaska and The North, California, Eastern Canada, Florida, Great Lakes, Mid Atlantic, New England, Northwest, Plains, Rocky Mountains, Southeast, Southwest, Texas, Western Canada
Behavior
Direct Flight, Undulating
Population
180.000.000

Range & Identification

Migration & Range Maps

Present throughout the year in many areas. In the north, migrant Red-winged Blackbirds appear quite early in spring, with males arriving before females. Migrates in flocks.

Description

Both sexes — Length: 6.7–9 in (17–23 cm); wingspan: 12–16 in (30–41 cm); weight: 1.1–2.7 oz (31–77 g). Unmistakable, the male Red-winged Blackbird’s bright red shoulder patches (epaulets) are most striking during song displays but can often be concealed by surrounding body feathers. These patches are typically bordered with yellow, though in central California, they are entirely red on the "Bicolored Blackbird." Females and young are very different—streaky brown with a buff eyebrow. They can resemble sparrows but differ in behavior, have a spikier bill, and a darker lower belly. See Bobolink.
Size
About the size of a Robin
Color
Black, Brown, Orange, Red, Yellow
Wing Shape
Broad, Rounded
Tail Shape
Rounded, Square-tipped

Songs and Calls

A rich, musical o-ka-leeee!
Call Pattern
Rising
Call Type
Chatter, Chirp/Chip, Scream, Trill, Whistle

Habitat

The Red-winged Blackbird breeds in marshes, brushy swamps, and hayfields; it also forages in cultivated land and along edges of water. Breeds most commonly in freshwater marsh, but also in wooded or brushy swamps, rank weedy fields, hayfields, and upper edges of salt marsh. Often forages in other open habitats, such as fields and mudflats; outside the breeding season, flocks gather in farm fields, pastures, and feedlots.

Behavior

Eggs

3-4, rarely 2-6. Pale blue-green, with markings of black, brown, purple concentrated at larger end. Incubation is by female only, 10-12 days.

Young

Both parents feed nestlings (but female does more). Young leave nest about 11-14 days after hatching.

Feeding Behavior

Forages mostly while walking on ground; also sometimes up in shrubs and trees. Outside the breeding season, usually forages in flocks, often associated with other blackbirds and starlings.

Diet

Mostly insects and seeds. The Red-winged Blackbird feeds on many insects, especially in summer, including beetles, caterpillars, grasshoppers, and others; as well as spiders, millipedes, and snails. The majority of adults' annual diet (roughly three-fourths) is seeds, including those of grasses, weeds, and waste grain. The Red-winged Blackbird also eats some berries and small fruits.

Nesting

To defend his territory and attract a mate, the male Red-winged Blackbird perches on a high stalk with feathers fluffed out and tail partly spread, lifts the leading edge of his wing so that the red shoulder patches are prominent, and sings. Also sings in slow, fluttering flight. One male often has more than one mate. Adults are very aggressive in nesting territory, attacking larger birds that approach, and loudly protesting human intruders. Nest: Placed in marsh growth such as cattails or bulrushes, in bushes or saplings close to water, or in dense grass in fields. Nest (built by female) is a bulky, open cup, lashed to standing vegetation, made of grass, reeds, leaves, rootlets, and lined with fine grass.

Conservation

Conservation Status

The Red-winged Blackbird is abundant and widespread.

Climate Map

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect the range of the Red-winged Blackbird. Learn even more in our Audubon’s Survival By Degrees project.

Climate Threats Facing the Red-winged Blackbird

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.

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