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Under Federal Consideration for Protection
In 2004, the US Fish and Wildlife Service (USFWS) was petitioned to list yellow-billed loons as endangered or threatened under the Endangered Species Act (ESA). The reasons for listing included in the petition were the small population size, restricted breeding grounds, and their vulnerability to human impact. In 2007, a status review was initiated for the species, and, in 2009, USFWS found that yellow-billed loons met the criteria for listing under the ESA throughout its range. The species has a low starting population, low reproductive rate, and very specific requirements for their breeding habitat. However, resources were not available at the time to propose a listing due to their allocation to higher priority species. Therefore the yellow-billed loon was designated as “warranted but precluded” and listed as a candidate species for the ESA.
For general information on yellow-billed loon, see the yellow-billed loon species profile page.