Native to North America
- Quaking Aspen (Populus tremuloides)
- Bigtooth Aspen (Populus grandidentata)
Aspen Identification and Relationship with Birds
Medium-sized deciduous tree, ranging from 30 to 60 feet tall, with a 10 to 30-foot spread. Aspen trees produce long fruit capsules filled with small seeds, which are attractive to birds. Some birds will also eat Aspen leaf buds. The Aspen plays host to a large number of insects and caterpillars (which will in turn attract insectivorous birds). The Yellow-Bellied Sapsucker is known to frequent Aspen trees due to its sap content and for nesting purposes. Aspen trees are also commonly used by other cavity and branch-nesting birds.