Inactive | Alert | Sitting/lying/standing stationary on any surface and looking at objects or individuals inside or outside of the cage | Scan | Frequency |
| Not alert | Sitting/lying/standing stationary on any surface, eyes may be open or closed, not looking at objects or individuals inside or outside of the cage | Scan | Frequency |
| Hunched | As for not alert, but sitting with head lower than the shoulders | Scan | Frequency |
Foraging | Eating | Ingestion of items | Scan | Frequency |
| Foraging | Searching for food or manipulation of food items or sources, without ingestion of food | Scan | Frequency |
| Chewing | Chewing without any insertion of food into the mouth in the preceding 30 s | Scan | Frequency |
Abnormal | Locomotor stereotypy | One or more completions of a repeated locomotor pattern, including any embedded behaviors | Scan | Frequency |
| Other abnormal | Digit sucking, hair pulling, nail biting, rocking, head flicking, hand shake, any self-injurious behavior | Continuous | Duration |
Nonsocial behaviors | Self-groom | Stroking, picking, or otherwise manipulating own body surface | Scan | Frequency |
| Self-scratching | Scratching the skin vigorously with nails | Continuous | Duration |
| Yawn | Open the mouth widely, teeth exposed, lips retracted without vocalisation | Continuous | Frequency |
| Body shake | Dog-like body shake of whole body | Continuous | Frequency |
| Eye rub | Rubbing the eye with a hand | Continuous | Duration |
| Interact with physical environment–hands/feet | Swinging, pushing, manipulating any part of the cage or an enrichment with hands or feet without using mouth | Scan | Frequency |
| Interact with physical environment–oral | Manipulating any part of the cage or an enrichment with mouth involved. Chewing/licking/biting any aspect of the cage or inanimate object in it | Scan | Frequency |
Social behaviors | Allogroom–donor | Stroking, picking, or otherwise manipulating a cage mate's body surface | Scan | Frequency |
| Allogroom–recipient | Being groomed by cage mate, following above descriptors | Scan | Frequency |
| Aggression to cage mate | Open mouth stare, threat posture, chase, push, attack | Continuous | Duration |
| Submissive to cage mate | Fear grimace, present, displacement of position in the cage | Continuous | Duration |
| Dominance to cage mate | Displace the cage mate out of position | Continuous | Duration |
| Affiliative | Lipsmack | Continuous | Duration |
| Aggression directed outside cage | Open mouth threat, attack or threat postures directed outside of the cage (e.g., at the glass) | Continuous | Duration |
| Play with cage mate | Nonaggressive high intensity interaction (chase, wrestle, tumble) with cage mate | Scan | Frequency |
| Mounting | Mounting cage mate | Continuous | Duration |
| Being mounted | Being mounted by cage mate | Continuous | Duration |
Locomotion | Agitated locomotion | Moving between locations, often rapidly, with a stiff unrelaxed gait | Scan | Frequency |
| Relaxed locomotion | Moving between locations with a relaxed gait | Scan | Frequency |
Other | Other | Any behavior not listed above and noteworthy; describe form | Continuous | Duration |