• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2001 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Baer's Pochard Aythya baeri	CR	winter	1979	present	A1
Garganey Spatula querquedula	LC	winter	1980-1989	abundant	A4i
Philippine Duck Anas luzonica	VU	resident	1997	min 20 individuals	A1, A4i
Northern Pintail Anas acuta	LC	winter	1980-1989	common	A4i
Great White Egret Ardea alba	LC	non-breeding	1987	3,000-5,000 individuals	A4i
Spot-billed Pelican Pelecanus philippensis	NT	non-breeding	1900-1919	present	A1
Streaked Reed-warbler Acrocephalus sorghophilus	CR	winter	1982-1996	common	A1
A4iii Species group - waterbirds	n/a	winter	1982	100,000 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2001) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2001. The most recent assessment (2018) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Wetlands (inland)	poor (40-69%)	poor (40-69%)	very unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Human intrusions and disturbance	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Agricultural expansion and intensification	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Natural system modifications	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Other	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Some of site covered (10-49%)	A management plan exists but it is out of date or not comprehensive	Some limited conservation initiatives are in place	low

Habitat1	Habitat detail	% of IBA
Artificial/Terrestrial		major (>10)
Wetlands (inland)		major (>10)

1. IUCN Habitat classification.

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Candaba swamp (Philippines). Downloaded from https://datazone.birdlife.org/site/factsheet/candaba-swamp-iba-philippines on 22/11/2024.