Back at the park’s southern pond, where the Mandarin duck was first spotted in October, a gray-haired man approached a woman identifying birds with the help of her iPhone.

The estimated global population of the Mandarin duck is 65,000-66,000. The Mandarin duck is a relatively rare bird and hence it has a small population, which is slowly declining.

Mandarin ducks are native to East Asia, but one has become a frequent flyer at a Layton duck pond — and Utah birders are swarming. "He's a little celebrity," one said.

Updated: 4:02 PM EDT Nov 2, 2018 By Evan Simko-Bednarski A rare Mandarin duck is hanging out in Central Park and nobody knows how it got there Updated: 4:02 PM EDT Nov 2, 2018 Advertisement A rare ...