Mandarin mania: how a 'hot duck' enraptured New York City

Observers have crowded Central Park in the hopes of seeing the 'hot duck' since it first appeared on 10 October - but no one knows where it came from

They call it Mandarin mania.

Swarms of New York City locals, tourists and bird watchers have gathered at the shores of a Central Park pond since a mandarin duck was spotted there on 10 October.