June 15 – August 15, etc.
Report Rosy-finch Bands
This summer, birders are asked to keep an eye out for banded Rosy-finches. If you see a banded bird, please note the:
- Location (latitude/longitude if possible)
- Color of the band (blue, gold, green)
- Which leg it is on
- Number of birds
- Take a photo (if possible)
Then send your report to RosyFinchReports@gmail.com or submit on eBird or CitSci.org.
Brown-capped Rosy Finches (Leucosticte australis) nest at higher elevations than any other bird species in the United States, and their breeding distribution is almost entirely limited to Colorado. They spend most of the year well above tree line, feeding on seeds and insects on snow fields and in short tundra vegetation moving to lower elevations for short periods during winter storms.
Despite residing in an almost pristine environment for most of the year, Brown-capped Rosy Finches have declined by as much as 95% over the past 50 years and, unfortunately, we don’t know why. The Bird Conservancy of the Rockies in collaboration the Denver Museum of Nature and Science, University of Colorado at Boulder, University of California at Santa Cruz, Colorado Parks and Wildlife, the US Fish and Wildlife Service, and the US Forest Service is initiating a research program to better understand the causes of their decline. Your help is essential to the success of this effort!