Only the most intrepid birders lay eyes on the striking cobalt feathers of the Island Scrub-Jay. They live exclusively on Santa Cruz Island, which is part of California’s Channel Islands National Park. The species has the smallest range of any bird in North America. The jays have few natural predators or competitors for food, letting them grow larger than their continental counterparts. But the birds’ isolation makes them susceptible to diseases such as West Nile Virus. Scientists are considering a vaccination program and possibly relocating some jays to nearby Santa Rosa Island.

More info and transcript at BirdNote.org. 

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