Table 2.

Behavior observations carried out during testing of the birds in the social feeding test.

Referred to in results as	Behaviors	Description
Peck and approach bowl (combined approach and peck bowl)	Approach bowl	Walk up toward bowl (stopping) with head over or just next to bowl, only scored for the bird that approaches a bowl first.
	Peck bowl	Peck at bowl or rope, counted as one peck per visit to bowl (not the amount of pecks to the bowl at the same visit).
Follow bird (combined follow and approach bird)	Follow bird	Walk clearly in the direction of the other bird when this individual is moving. Walks at least five consecutive steps and get one score for each new five steps.
	Approach bird	Get one score if it walks five steps or more toward the other bird when this one is standing still so that it comes within one bird length distance to the other bird.
Aggressive	Aggressive	Attack or peck at the head of the other bird.
Avoid	Avoid	Crouching behavior, move away from aggressive attack or clearly avoid getting close to other bird.