Fig. 1

Photographs of the two adult red foxes (Vulpes vulpes) used to develop magnetic ethograms equipped with triaxial accelerometer and magnetometer bio-logging devices. a Fox1—modified Kong Comfort Dog Harness (collar portion only) equipped with Gulf Coast Data Concept bio-logging device attached to the ventral side of collar beneath the neck. The long axis of the device is aligned perpendicular to the spine. b Fox2—Kong Comfort Dog Harness including torso section and bio-logging device attached to dorsal side of fox aligned, so the long axis of the device is parallel to the spine. Insets in the upper and lower corners of each photograph show the device orientation for each fox used to collect accelerometer data. The schematic showing the orientation of each device matches the approximate orientation of the device in the photograph. Note that in the photograph of Fox1 (a), the head (and therefore, the bio-logging device) is tilted slightly downward; however, the schematic of the device is shown as leveled with respect to the horizontal for ease of interpretation. Furthermore, there was a total of three different device orientations used to collect data from Fox1 throughout the behavioral recording sessions. The scheme shown above is the orientation used to collect the majority, but not all, of the behavioral data. See Additional file 1: Table S1 for the number of each behavior recorded from each orientation of the device from Fox1. The device orientation remained unchanged throughout the study for Fox2 and the schematic is an accurate representation of the device orientation during all behaviors as the device was attached to a harness on the fox’s back, and therefore did not experience rotations when the fox moved its head laterally or vertically