Table 1.
Ethogram of recorded behaviours.
| Behaviour | Description |
|---|---|
| Walking 1 | At least two upper limbs and body moving in any direction |
| Jumping 1 | The two anterior limbs up |
| Scratching 1 | Rasp the floor or the wall with limb |
| Head toward the gate | Head pointed to the opening gate (direction of food reward) |
| Forward ears | Ears toward the front at an angle of more than 30° from the perpendicular |
| Backward ears | Ears toward the back at more than 30° from the perpendicular |
| Asymmetric ears | Ear tips are oriented in opposite directions |
| Passive ears | Ears hanging down loosely and dangling along with any head movement |
| Head shaking 2 | Sudden movements of the head either up/down or left/right |
1 Walking, scratching, and jumping were grouped as “active” behaviour. 2 Head shaking was collected only on day 21.