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. 2018 Sep 26;13(9):e0204303. doi: 10.1371/journal.pone.0204303

Table 1. Ethogram of recorded behaviours.

Behaviour Description
Feeder peck1 Bird pecks at feeder
Waltzing3 Male turns body towards female, lowers one wing with stepping movement
Exploration1,2
Explore ground Walking or standing, head close to ground, eyes focusing on ground items
Ground peck3 Pecks at items on ground
Object peck Pecks at object of interest
Manipulate object Uses beak to lift, move or otherwise manipulate object
Feather preening1,2
Preening Uses beak to trim/arrange feathers
Scratch body Uses feet to scratch/clean/preen feathers
Locomotion1,2
Walk Two or more steps, attending to surroundings
Run Two or more steps in faster tempo than walk, head held forward
Vocalisation2
Tid-bit call Short clucks, emitted when finding food, or by male for attracting females
Other vocalisation Any unspecified vocalisation, not cockerel crowing
Agonistic behaviour2
Wing flap threat Bird flaps wings < 0.5 m in front of other birds, upright body position
Give and receive threat Bird follows other bird with head high, other bird moving away
Raised hackle threat Body horizontal or in pecking position, head towards opponent, hackles raised
Chase Bird follows another bird, both running, jumping or flying
Attack Bird moves swiftly towards opponent to give or gives aggressive peck. Head over opponent
Fight Bird involved in aggressive encounter, more than one peck. Both birds active, running, jumping or flying

Behaviour categories used for statistical analysis are in bold.

1,2,3Behaviours or behaviour categories used in experiment 1, 2 and 3 respectively