Data Zone
The site was identified as internationally important for bird conservation in 2021 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.
Populations meeting IBA criteria ('key species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Ruddy-headed Goose Chloephaga rubidiceps | LC | breeding (2016–2021) | 91–101 mature individuals | B3a |
| Magellanic Plover Pluvianellus socialis | VU | breeding (2016–2021) | 1–31 individuals | B3a |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2021. The most recent assessment (2015) is shown below.
| IBA conservation status | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2015 | near favourable | high | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | medium | |
| State (condition of the key species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Grassland | - | moderate (70–90%) | near favourable |
| Wetlands (inland) | - | good (>90%) | favourable |
| Marine Coastal/Supratidal | - | good (>90%) | favourable |
| Pressure (threats to the key species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Energy production and mining | happening now | some of population/area (10–49%) | moderate deterioration (10–30% in 3 generations) | high |
| Residential and commercial development | happening now | some of population/area (10–49%) | slow deterioration (1–10% over 3 generations) | medium |
| Response (conservation actions taken for the key species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of site covered (<10%) | No management planning has taken place | Very little or no conservation action taking place | very low |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Grassland | - | |
| Marine Coastal/Supratidal | - | |
| Wetlands (inland) | - |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Estancia San Gregorio (Chile). Downloaded from
https://datazone.birdlife.org/site/factsheet/estancia-san-gregorio-iba-chile on 15/01/2025.