| Scientific Name | Sphyrapicus thyroideus nataliae |
| Category | D |
| Taxon | Birds |
| Climate Change Vulnerability Score | Less Vulnerable |
The Williamson's Sapsucker (Sphyrapicus thyroideus nataliae) is a medium- to large-sized (21-25 cm [8-10 in]) woodpecker that lives in the mountains of western North America, from southern British Columbia to central Mexico. It inhabits middle- to high-elevation conifer and mixed-conifer forests of northern and western New Mexico. It drills holes in trees to eat sap and phloem fibers; it also eats insects and fruits. The Williamson’s Sapsucker will experience a high degree of climate exposure and has a high adaptive capacity. Overall, it has a Climate Change Vulnerability Index ranking of Less Vulnerable under both Representative Concentration Pathway (RCP) 4.5 and RCP 8.5 Scenarios. The Williamson’s Sapsucker’s climate change vulnerability is impacted by factors related to distribution and movement, which influence its ability to shift in space. It also has documented or modeled responses to climate change that impact its vulnerability score.



