Table 17 Active Ardeid Night Roost Survey Findings
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Date: 25 March 2024 |
Sunset Time: 18:36 Tidal Condition: Low Tide |
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Pre-roost Period |
Final roost Period |
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Time
of Return: |
Chinese
Pond Heron Ardeola bacchus,
Great Egret Ardea alba and Little Egret Egretta
garzetta (18:09) |
Time
of Return: |
Chinese
Pond Heron Ardeola bacchus,
Great Egret Ardea alba and Little Egret Egretta
garzetta (18:23) |
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Parameters |
Location |
Parameters |
Location |
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|
ANR1 |
ANR2 |
ANR1 |
ANR2 |
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Pre-roost
Aggregation (Y/N): |
Y |
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. |
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|
Ardeid
Species Composition |
Abundance
(individuals) |
Ardeid
Species Composition |
Abundance
(individuals) |
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|
ANR1 |
ANR2 |
ANR1 |
ANR2 |
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|
Chinese
Pond Heron Ardeola bacchus |
6 |
2 |
Chinese
Pond Heron Ardeola bacchus |
8 |
10 |
|
Great Egret |
1 |
3 |
Great
Egret |
- |
23 |
|
Little Egret Egretta garzetta |
2 |
- |
Little Egret Egretta garzetta |
|
12 |
|
|
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Breeding
Activity (Y/N): |
ANR1 |
N |
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ANR2 |
N |
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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
-: not recorded