Gymnorhinus cyanocephalus]]> Gymnorhinus cyanocephalus) are thought to be declining range-wide (Boone et al. 2018). Very little is known about their breeding status and habitat use in Colorado. In 2020, Colorado Parks and Wildlife examined six breeding colonies in Montrose and Delta counties to assess colony size and structure, hatching and fledging success, potential threats to reproductive output, and colony site fidelity. Six additional colonies located in western Colorado in 2019 were surveyed a single time during the breeding season to determine site fidelity.]]> No Copyright - Non-Commercial Use Only]]>