California Partners in Flight - Point Blue

( Densities/territory size: winter home range near Tucson,AZ estimated at 8.8 hectares; population density in screwbean mesquite woodland near Yuma much higher (Root 1969). ( Ellison (1992) suggests that the apparent rise in overall BGGN numbers might imply little current effect of neotropical deforestation on wintering populations, as is not ... ................
................