Look! It's a bird...it's a plane...it's a.....Clouded salamander??
Arboreality, or the ability to live in trees, is surprisingly common in Plethodontid (lungless) salamanders. For species that breathe through their skin, the distance between tree canopy and standing water means precipitation events (and humidity) are extremely important if they are to stay oxygenated and avoid pruning.
Although it's more common to see tree-climbing tropical species of this family, some temperate species such as the Clouded salamander (Aneides ferreus), have been documented enjoying more vertical views. These observations are particularly interesting because most Plethodontid salamanders in temperate regions are fossorial or terrestrial.
Clouded salamanders are endemic to the Western US, primarily found in the wet coastal forests of Oregon and Northern California. Like other Northwest affiliates, this species enjoys old-growth forests and has been documented laying eggs upwards of 40 meters in the tree canopy! Watch out voles, these guys are moving in!
For more information check out:
Forsman and Swingle 2007