When using vertical movement to differentiate between the two common North American species in a mixed area, which movement is associated with the White-breasted Nuthatch?

Answer

Upward-climbing

While the family generally moves downward, when distinguishing between the two species in the same general area, the White-breasted Nuthatch is often associated with climbing upward, while the Red-breasted spirals downward.

When using vertical movement to differentiate between the two common North American species in a mixed area, which movement is associated with the White-breasted Nuthatch?
birdfaunadistributionNuthatch