Species · GBIF taxon 2451234
Western Fence Lizard
Sceloporus occidentalisAlso known as Blue-belly, Western Swift, Fence Swift
Western fence lizards are active, sun-loving reptiles frequently seen basking on rocks, logs, and wooden fences to regulate their body temperature. Males defend their territories with vigorous push-up displays that flash their vibrant blue throat and belly patches to rivals and potential mates. These abundant insectivores play a crucial ecological role, particularly because a protein in their blood neutralizes the Lyme disease bacteria carried by feeding ticks.
DiurnalSun-lovingInsectivorous
- diet
- Insectivorous, feeding on beetles, ants, caterpillars, spiders, and other small invertebrates.
- family
- Phrynosomatidae
- threats
- Habitat loss, domestic cat predation, and pesticide use reducing insect prey.
- life Span
- 3 to 5 years in the wild.
LC
Safe to observe at a normal distance.
- Watch for Push-ups: Look for males performing rapid push-up displays on elevated perches to signal territory.
- Approach Slowly: Move quietly and avoid casting a shadow over them, which triggers their predator-escape response.
- Observe the Belly: If one climbs a vertical glass or mesh surface, look for the brilliant blue patches on its underside.