Species analysis   Statistical exploration   Classification trees   Variables  

Rock Dove
Occurred the most disproportionately in hexagons with more than 11% agricultural land. Also occurred where less agricultural lands if June minimum temperature (hex. max.) is 6-13� C. If little or no agricultural lands present, it occurred where April maximum temperature (hex. med.) is 13-16� C. The logistic regression analysis showed positive or negative association with agricultural lands, towns and cities, road density, elevation (hex. avg.), the extent of public land, April maximum temperature (hex. avg.), April maximum temperature (hex. med.), and June minimum temperature (hex. max.).

Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 84.65)
Squares: using ONHP land cover classification (accuracy score: 88.28)
Hexagons: using AVHRR land cover classification (accuracy score: 82.79)