Table 5.2 – Active Ardeid Night Roost Survey Findings

Date: 16 April 2021 Sunset Time: 18:44 Tidal Condition: Low Tide
Pre-roost Period				Final roost Period
Time of Return:	17:48 (Grey Heron); 17:55 (Chinese Pond Heron)			Time of Return:	18:00 Grey Heron; 18:05 (Chinese Pond Heron); 18:19 (Eastern Cattle Egret and Little Egret)
Parameters		Location		Parameters	Location
		ANR1	ANR2		ANR1	ANR2
Pre-roost Aggregation (Y/N):		N	Y	Substrate Species:	Sonneratia apetala and S. caseolaris	Sonneratia apetala and S. caseolaris
Substrate Species:		Sonneratia apetala and S. caseolaris	Sonneratia apetala and S. caseolaris	Substrate Height (m):	Approx. 5 m.	Approx. 3-4 m.
Substrate Height (m):		Approx. 5 m.	Approx. 3-4 m.
Ardeid Species Composition		Abundance (individuals)		Ardeid Species Composition	Abundance (individuals)
		ANR1	ANR2		ANR1	ANR2
Grey Heron Ardea cinerea		-	2*	Grey Heron Ardea cinerea	-	2
Chinese Pond Heron Ardeola bacchus		-	4*	Chinese Pond Heron Ardeola bacchus	7	4
				Eastern Cattle Egret Bubulcus coromandus	-	20
				Little Egret Egretta garzetta	-	11
Breeding Activity (Y/N):		ANR1	N
		ANR2	N
Notes: Pre-roost Period: Period when avian individuals gather first before flying into a night roost ANR1: Active ardeid night roost area east of the Project boundary ANR2: Active ardeid night roost area northeast of the Project boundary *: individuals aggregated on the exposed mudflat contiguous to their final mangrove roosting substrate -: not recorded