Assertion: saddleback | /r/CapableOf | sing out at dawn
Facets:
value: to mark their territory
type: PURPOSE
Source sentences:
text: Territorial birds, saddlebacks display antagonistic behaviour in this regard on three levels of intensity, singing out at dawn to mark their territory, making threat displays, which can include head bobbing, tail fanning, and warbling displays (at the same time the wattles become dilated), and finally, when a direct challenge is made to a bird's territory, fights can occur in which combatants attempt to grapple with the wattles of their foe.
text: Territorial birds, saddlebacks display antagonistic behaviour in this regard on three levels of intensity, singing out at dawn to mark their territory, making threat displays, which can include head bobbing, tail fanning, and warbling displays (at the same time the wattles become dilated), and finally, when a direct challenge is made to a bird's territory, fights can occur in which combatants attempt to grapple with the wattles of their foe.