Home | About Us | How to Participate | Biodiversity Modules | Projects | Maps | News | Resources
Species Code: ANST
Breeding Range Map
Metadata (Data about data or how the map was made)
This species is locally uncommon in southeastern Grant County and vicinity in wetlands. Specifically they are found at Potholes Reservoir, Moses Lake, Crab Creek, the Frenchman Hills area, Winchester Wasteway, and at ponds in the Columbia National Wildlife Refuge. Confirmed nesting records are from small colonies in trees at the north and south ends of the Potholes Reservoir, and a small colony along the Columbia River between Benton and Franklin Counties.
Good habitats in the core areas of use included all freshwater bodies and wetlands in the Central Arid Steppe zone, limited to areas with known records.
Breeding season records of this species are fairly common from the Potholes area, but rare elsewhere in the state. Great Egrets are apparently recent colonists in Washington, as there was no report of them in Washington as of 1953. The first nesting record was reported at Potholes Reservoir, with Great Blue Herons and Black-crowned Night Herons, in willow trees. Great Egrets have since extended their nesting activity to the Hanford site along the Columbia River between the counties mentioned above. Egrets are occasionally seen outside the known breeding range, including Franklin County (away from the known breeding location), Lincoln County, and Spokane County. These birds may be wanderers or it may be a sign that the species is expanding its breeding range in the basin.
Translated from the Washington Gap Analysis Bird Volume by Uchenna Bright
Text edited by Gussie Litwer
Webpage designed by Dave Lester