Data Zone
The site was identified as internationally important for bird conservation 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 List | Season (year/s of estimate) | 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 birds | 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 birds | 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 birds | A4iii |
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.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2018 | very poor | very high | low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | habitat | medium | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Wetlands (inland) | poor (40–69%) | poor (40–69%) | very poor |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Biological resource use | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Human intrusions and disturbance | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Agricultural expansion and intensification | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Natural system modifications | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Other | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Some of area covered (10–49%) | A management plan exists, but it is out of date or not comprehensive | Some limited conservation initiatives are in place | low |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Artificial/Terrestrial | major (>10) | |
| Wetlands (inland) | major (>10) |
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 23/12/2024.