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GAP Analysis Predicted Distribution Map

Hammond's Flycatcher (Empidonax hammondii)

Species Code: EMHA

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

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

This species is common in mid-elevation forests east of the Puget Trough in western Washington. Locally common in the northeast Olympics (rain shadow). Generally absent from the Grays Harbor and Willapa Bay areas. Uncommon and local in the San Juan Islands. Uncommon at higher elevations in east- and west-side sub-alpine forests. In eastern Washington, also found in riparian habitats down into the Ponderosa Pine zone. Breeds i some isolated forest patches in steppe, e.g. in Whitman County in the isolated mixed conifer forests at Kamiak Butte.

Core zones were all forested zones except the Sitka Spruce, Willamette, and Oak zones. In most zones, good habitats were conifer forests. Mixed forests and wooded wetlands were adequate. Excluded from open forest in the Ponderosa Pine, Sub-alpine Fir, and Woodland/Prairie Mosaic zones and only in closed conifer forest in Oak zone.

Hammond's Flycatchers prefer dense coniferous forests with minimal plants under the canopy. In the Blue Mountains, nests are placed most frequently in the lower third of the canopy in sites with few, small understory trees and a well-developed, closed-canopy overstory. Hammond's Flycatchers are reported to be rate or absent from the wettest forests along the outer coast, nor are there Breeding Bird Atlas data for this species from there. In the San Juan Islands, they may occur as rare breeders on Mount Constitution. This species is absent or rare in most of southern and eastern Klickitat County, probably because of the amount of hardwoods. They are rare in developed areas and lowland forests of the Puget-Willamette Trough.

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