Table 1.

Vulturine guineafowl (Acryllium vulturinum) exhibit a range of aggressive (1–6) and submissive (7–8) dyadic dominance interactions (see also Papageorgiou & Farine [30]). (In each description, A represents the actor and B the recipient of the interaction.)

	interaction category	interaction type	description
1	higher-cost aggressive	SPI	A grabs B by the tail feathers and spins them around
2	higher-cost aggressive	TAI	A grabs B by tail or body feathers
3	higher-cost aggressive	CHA	A chases B
4	lower-cost aggressive	PEC	A pecks B on the head or on body
5	lower-cost aggressive	DIS	A displaces B from foraging or resting (e.g. sand bathing) spot
6	lower-cost aggressive	GAP	A gapes at B (similar to chase display but without chasing). B recedes
7	submissive	SUV	A falls to the ground in front of B, often accompanied by a ‘crying call’. Usually observed in chicks, but also between adults when on the move
8	submissive	SUB	A performs submissive caress with its body under/around the chest of B