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Cassin’s Vireo

Cassin’s Vireo (Vireo cassinii)
Habitat: Oak-Pine
Habitat Attribute: moderate to high canopy and subcanopy cover

Habitat Objectives (Sites)
Oak-Pine forest in the following conditions:
– canopy cover >65%
– subcanopy cover >20%
– shrub cover 30-70%
– mean tree dbh >23 cm (9 in)

Population Objectives (Sites)
Target Densities in Suitable Habitat:
Puget Lowlands:
– North: >0.01 birds/ha
– South: >0.09 birds/ha
Willamette Valley:
– North: >0.02 birds/ha
– South: >0.14 birds/ha)
Klamath Mountains:
– Umpqua: >0.07 birds/ha
– Rogue: >0.17 birds/ha

Rockwell, S. M., J. L. Stephens, and B. Altman. 2021. Population and habitat objectives for landbirds in grassland, oak, and riparian habitats in the Puget Lowlands, Willamette Valley, and Klamath Mountains ecoregions. Version 2.0. Prepared for Oregon-Washington Partners in Flight, Pacific Birds Habitat Joint Venture, Bureau of Land Management, and U.S. Forest Service. Klamath Bird Observatory, Ashland, OR, and American Bird Conservancy, Corvallis, OR