The harlequin duck is a distinctive waterfowl more known to Alaskans and residents of the Pacific Northwest. The duck's historic range often brought wintering birds down as far as the Northern California high country.
UC Davis researchers are now trying to find out more about the California population of the harlequin duck – and they're enlisting the public's help to do so.
Actual reported sightings of the harlequin duck in the Sierra Nevada have been few and far between, however, with the paper showing a population size of just 10 as of the 2008 publishing.
Researchers have assembled a webpage where Sierra Nevada residents can report sightings.
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