Tracking Data for Common Eiders (Somateria mollissima)

This data release includes 2 child items with tracking data for Common Eiders, a sea duck species found across Alaska and the Arctic. Some populations migrate between distant breeding and wintering areas while others are essentially nonmigratory.Child Item 1: "Argos Satellite Tracking Data for Common Eiders (Somateria mollissima) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters.Child Item 2: "Argos Satellite Tracking Data for Common Eiders (Somateria mollissima) - Raw Data" -- All raw data collected from Argos satellite transmitters, provided for completeness of the archive. The quality-controlled, "Argos Processed Data" (Child Item 1) are better suited for most analytical purposes.