Many accounts are incomplete although new information is being added continuously.
Errors do occur.
Users are cautioned to refer back to the original cited source to assess completeness and correctness before using the information. Web updates are intermittent, not continuous, therefore some dynamic information such as legal status may not be absolutely current. 04 Comments Subspecies not identified in New Mexico. Occasionally one or few are reported as winter residents at the Gray Ranch, Hidalgo county, New Mexico. The aspen type is the most common and extensive hardwood type in the western United States.