Data Zone
The site was identified as internationally important for bird conservation in 2019 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 |
|---|---|---|---|---|
| Humboldt Penguin Spheniscus humboldti | VU | breeding (2015–2019) | 6–100 individuals | A1, B3b |
| Peruvian Diving-petrel Pelecanoides garnotii | NT | non-breeding (2015–2019) | 9–250 individuals | A1, B3b |
| Peruvian Pelican Pelecanus thagus | NT | resident (2015–2019) | 12–25 individuals | B3b |
| Peruvian Booby Sula variegata | LC | breeding (2003) | 18,000 individuals | A4, B3b |
| Red-legged Cormorant Poikilocarbo gaimardi | NT | resident (2015–2019) | 4–6 individuals | B3b |
| Guanay Cormorant Leucocarbo bougainvilliorum | NT | breeding (2015–2019) | 4–45 individuals | B1a, B3b |
| Neotropical Cormorant Nannopterum brasilianum | LC | breeding (2003) | 50 individuals | B3b |
| Kelp Gull Larus dominicanus | LC | breeding (2003) | 2,000 individuals | B3b |
| Inca Tern Larosterna inca | NT | breeding (2015–2019) | 3–12 individuals | B3b |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2019. The most recent assessment (2019) is shown below.
| IBA conservation status | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2019 | favourable | very high | low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | habitat | good | |
| State (condition of the key species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| 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 | likely in short term (within 4 years) | whole population/area (>90%) | rapid deterioration (>30% over 3 generations) | very high |
| Human intrusions and disturbance | likely in short term (within 4 years) | whole population/area (>90%) | rapid deterioration (>30% over 3 generations) | very high |
| Climate change and severe weather | likely in long term (beyond 4 years) | whole population/area (>90%) | slow deterioration (1–10% over 3 generations) | medium |
| Biological resource use | happening now | few individuals/small area (<10%) | moderate deterioration (10–30% in 3 generations) | low |
| 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 | Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity | low |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | major (>10) | |
| Shrubland | major (>10) | Arid lowland scrub |
| Land use | % of IBA |
|---|---|
| nature conservation and research | major (>10) |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Islotes Pajaros (Chile). Downloaded from
https://datazone.birdlife.org/site/factsheet/islotes-pajaros-iba-chile on 14/01/2025.