A recent mystery involved a carving on display at NJ Audubon's Lorrimer Sanctuary.

While I was visiting, sanctuary director Alexa Fantacone gave me a look at a large and ancient collection of taxidermied birds. (Yes, we wore COVID masks and gloves in case any of the birds were preserved with arsenic.)

Some proved to be of value, including several labeled bird skins from the Smithsonian.

Other proved to be mysteries, like this unlabeled young taxidermied shorebird.

What is it?