A previously unidentified redware vessel has been determined to be a watering pot for a canary cage. This artifact represents an archaeologically recoverable element of the international trade in songbirds, with the birds shipped from Germany to the United States and elsewhere around the world.
Stull, Scott D.
"Archaeological Evidence for Trade in Harz Roller Canaries,"
Northeast Historical Archaeology:
45, Article 9.
Available at: https://orb.binghamton.edu/neha/vol45/iss1/9