Great Egret (Ardea alba) | South Dakota Birds

Great Egrets are the largest of the white egrets found in the state. A very widespread species, Great Egrets are found on every continent except Antarctica. After playing a key role in it's recovery after nearly being exterminated by 1900, the Audubon Society chose the Great Egret as its symbol. Note the long lacy plumage in the breeding bird on the right, and the green lores of another breeding bird in the photo on the bottom. Non breeding birds lack the lacy plumage and green lores in front of the eyes.

Habitat

Sloughs, ponds, marshes, and flooded pastures. Nests in thickets or trees, usually adjacent to water, but occasionally further away from water.

Diet

Mostly fish. Also eats crustaceans, frogs, salamanders, snakes, and aquatic insects. May chase grasshoppers in open fields.

Behavior

Forages by standing still or walking slowly, waiting for prey to approach, and the stabbing it with a quick thrust of the bill. While they primarily feed along wetlands and water features, they will occasionally also feed in open fields and even follow cattle like Cattle Egrets.

Nesting

Mid-June to July. They usually nest in colonies, sometimes mixed with other wading birds, but they will also sometimes build solitary nests. The nest is a platform of sticks built in a tree or tall shrub. The female usually lays 3 or 4 eggs, and both parents help to incubate them. When the eggs hatch, both parents help to feed the young. The young fledge after about 6 or 7 weeks.

Song

Bold throaty croaking or repeated cuk, cuk .

Migration

Great Egrets in the interior of the United States are nearly all migrants, moving southward or towards the coastlines in winter. Some Great Egrets may be present at all season along the Gulf and Atlantic coasts of the US, as well as portions of the desert Southwest and California. They are found along the coastlines of Mexico, central America, and South America at all seasons, as well as the Caribbean.

Interactive eBird Map

Click here to access an interactive eBird map of Great Egret sightings

Similar Species

We have three "white egrets" that are commonly found in South Dakota (primarily in eastern South Dakota), plus another species that could potentially be tricky (but is rare in the state). Click here for more information on differentiating the white egrets.

Snowy Egret - Snowy Egrets are considerably smaller than a Great Egret. They have distinctive yellow feet on black legs, while Great Egrets have all black legs and feet. The bill of a Snowy Egret is black, while that of a Great Egret is yellow.
Cattle Egret - Cattle Egret are also considerably smaller than a Great Egret, and noticeably stockier with a much shorter neck and shorter legs. The legs of a Cattle egret are yellowish or pinkish, compared to the black legs of a Great Egret.
Little Blue Heron. Little Blue Herons are but rare visitors to South Dakota, and as the name implies...they're bluish, not white! So why are they on this list? Because the juvenile Little Blue Heron is pure white, and eventually molts into its more typical plumage. A juvenile Little Blue Heron is smaller than a Great Egret, has yellowish-green legs (black on a Great Egret) and has a grayish-blue bill (black on a Great Egret).


Snowy Egret	Snowy Egret (next to larger Great Egret)	Cattle Egret	Little Blue Heron (juvenile)

Conservation Status

Was nearly extinct by 1900 due to demand for it's plumes, along with many of the egrets and herons. Thanks to early conservation efforts by groups like the Audubon Society, they (and other egrets) have gradually recovered since. Today the IUCN lists the Great Egret as a species of "Least Concern".

Further Information

Photo Information

April 25th, 2004 - Kingsbury County, South Dakota - Terry Sohl

Audio File Credits

¹Matthias Hemprich. Recorded in southern Germany on October 15th, 2017. Original recording and information from xeno-canto.
²Bruce Lagerquist. Recorded in Brevard County, Florida on April 2nd, 2019. Original recording and information from xeno-canto.