Crossword Clue:

one that migrates as

AnswerCrossword Clue
MONISMSPhilosophies that regard reality as one organic whole
ANIONAn ion that migrates to the anode
SNOWGOOSEBird of the American Arctic that migrates south
TERNBird that migrates from the Arctic to Antarctica
SHADFish that migrates from seawater to freshwater and back