Atlas Methods ~ Supplemental Data

Inclusion of Supplemental Data

The Second Colorado Breeding Bird Atlas incorporated supplemental data from state and federal agencies, individuals, and organizations conducting a variety of bird surveys during the same time period as the Atlas. Supplemental data were provided from both priority and non-priority blocks. The following agencies and organizations provided supplemental data to the Atlas:

• Alamosa/Monte Vista National Wildlife Refuge
• Arapaho National Wildlife Refuge
• Bureau of Land Management
• Colorado Parks and Wildlife
• Cornell Lab of Ornithology (eBird)
• Evergreen Audubon Society
• Rocky Mountain Arsenal National Wildlife Refuge
• Rocky Mountain Bird Observatory
• U.S. Forest Service, Region 2
• Various individuals