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GAP Analysis Predicted Distribution Map

Red-necked Grebe (Podiceps grisegena)

Species Code: POGR

Click to enlarge Range map

= Core Habitat
= Marginal Habitat

Breeding Range Map
The green area shows the predicted habitats for breeding only. The habitats were identified using 1991 satellite imagery, Breeding Bird Atlas (BBA), other datasets and experts throughout the state, as part of the Washington Gap Analysis Project. Habitats used during non-breeding months and migratory rest-stops were not mapped.

Metadata (Data about data or how the map was made)

Click to enlarge distribution map

Other maps & Information:
  • Breeding Bird Atlas
  • NatureMapping observations
    during breeding season
  • NatureMapping observations
    throughout the year

This species is common in large freshwater lakes, sloughs, and reservoirs in northeastern Washington, especially in the lower river valleys of northeastern counties but they are rare and local elsewhere.

Good habitats in the core areas of use included lakes and rivers with emergent vegetation from parts of the Palouse, Three-tip Sage, Ponderosa Pine, and Interior Douglas-fir zones beginning east of Sinlahekin Creek in Okanogan County. Since this Grebe needs stagnant or slow moving water bodies with suitable developing vegetation for nesting, marshy backwaters and other areas with still water is where they occurred when modeled on rivers.

This species nests on floating vegetation mats in open water or along the shoreline. However, lakes and stable water levels are preferred over those that fluctuate during breeding season (such as those regulated by dams). In fact, although this is a limitedly distributed species, the Red-necked Grebe is common in most ponds and lakes. There were scattered records outside the counties modeled but breeding in those places is evidently rare.

Translated from the Washington Gap Analysis Bird Volume by Uchenna Bright
Text edited by Gussie Litwer
Webpage designed by Dave Lester