Species analysis   Statistical exploration   Classification trees   Variables  

Hermit Warbler
Occurred the most disproportionately in western Oregon hexagons with varied topography and some freshwater habitat or, secondarily, more than 7% Douglas-fir - w. hemlock - red cedar forest. In the eastern part of its Oregon range, its distribution corresponded mostly with a relatively cool July maximum temperature (hex. med.) of 20-24� C, or slightly warmer areas if more than 2% lakes/reservoirs present. The logistic regression analysis showed positive or negative association with mixed conifer forest (Douglas-fir dominant), Douglas- fir - w. hemlock - red cedar forest, Sitka spruce - w. hemlock maritime forest, elevation (hex. avg.), April precipitation (hex. avg.), July precipitation (hex. avg.), the extent of public land, and-to a lesser degree-June precipitation (hex. med.), July minimum temperature (hex. max.), and July precipitation (hex. med.).

Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 96.26)
Squares: using ONHP land cover classification (accuracy score: 93.73)
Hexagons: using AVHRR land cover classification (accuracy score: 96.03)