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. Subspecies not identified in New Mexico. R.21 W., on the Animas Division of the Cornado Forest near the Mexican boundary. At intervals a number of years apart flights of Thick-bills appear in the mountains of southern Arizona, coming from Mexico.