Avioserpens in the Western Grebe (Aechmophorus occidentalis): A new Host and Geographic Record for a Dracunculoid Nematode and Implications of Migration and Climate Change.

We report a new host and geographic range for the dracunculoid nematode (Avioserpens sp.) in a Western Grebe (Aechmophorus occidentalis) from southern Arizona, US. This discovery underscores the importance of parasite discovery and identification in the wildlife rehabilitation setting.