Table 1. Showing different levels of the crest and circumstances in which these used.

	Crest Position	Number of scan/ observations	Proportion	Crest position angle	Circumstances in which used
1.	Down crest position	163	44.9 %	0°-30°	Greeting, begging, sleeping, feeding, egestion, beak cleaning, and water drinking.
2.	Middle crest position	114	31.4 %	31° to 60°	Feeding, nest guarding and preening.
3.	Up crest position	86	23.7 %	61° to 105°	During alertness, play, roosting chorus, danger and attacking/ aggression/ chasing