Data Zone
The site was identified as important in 2007 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 |
|---|---|---|---|---|---|
| Great Curassow Crax rubra | VU | breeding | 2006 | 250-999 individuals | A1 |
| Costa Rican Swift Chaetura fumosa | LC | breeding | 2006 | unknown | A2, A3 |
| White-crested Coquette Lophornis adorabilis | LC | breeding | 2006 | unknown | A2, A3 |
| Garden Emerald Chlorostilbon assimilis | LC | resident | 2006 | unknown | A3 |
| Mangrove Hummingbird Amazilia boucardi | EN | breeding | 2006 | 1,000-1,500 individuals | A1, A2, A3 |
| Charming Hummingbird Polyerata decora | LC | breeding | 2006 | unknown | A2, A3 |
| Ruddy Turnstone Arenaria interpres | NT | winter | 2006 | 2,000-3,000 individuals | A4i |
| Least Sandpiper Calidris minutilla | NT | non-breeding | 2006 | 5,000-10,000 individuals | A4i |
| Short-billed Dowitcher Limnodromus griseus | VU | resident | 2006 | 1,500-2,500 individuals | A4i |
| Spotted Sandpiper Actitis macularius | LC | winter | 2006 | 1,500-3,000 individuals | A4i |
| Royal Tern Thalasseus maximus | LC | resident | 2006 | 500-1,000 individuals | A4i |
| Baird's Trogon Trogon bairdii | NT | breeding | 2006 | 250-999 individuals | A1, A2, A3 |
| Fiery-billed Araçari Pteroglossus frantzii | LC | breeding | 2006 | unknown | A2, A3 |
| Rufous-winged Woodpecker Piculus simplex | LC | resident | 2006 | unknown | A3 |
| Golden-naped Woodpecker Melanerpes chrysauchen | LC | breeding | 2006 | unknown | A2 |
| Black-hooded Antshrike Thamnophilus bridgesi | LC | breeding | 2006 | unknown | A2, A3 |
| Tawny-winged Woodcreeper Dendrocincla anabatina | LC | breeding | 2006 | unknown | A3 |
| Orange-collared Manakin Manacus aurantiacus | LC | breeding | 2006 | unknown | A2, A3 |
| Three-wattled Bellbird Procnias tricarunculatus | VU | resident | 2006 | 100-200 individuals | A1 |
| Turquoise Cotinga Cotinga ridgwayi | VU | breeding | 2006 | 250-500 individuals | A1, A2, A3 |
| Yellow-billed Cotinga Carpodectes antoniae | NT | breeding | 2006 | 100-250 individuals | A1, A2, A3 |
| Yellow-bellied Tyrannulet Ornithion semiflavum | LC | breeding | 2006 | unknown | A3 |
| Riverside Wren Cantorchilus semibadius | LC | breeding | 2006 | unknown | A2, A3 |
| Yellow-crowned Euphonia Euphonia luteicapilla | LC | breeding | 2006 | unknown | A3 |
| Spot-crowned Euphonia Euphonia imitans | LC | breeding | 2006 | unknown | A2, A3 |
| Black-cheeked Ant-tanager Habia atrimaxillaris | NT | resident | 2004 | 1,000-2,499 individuals | A1, A2, A3 |
| White-throated Shrike-tanager Lanio leucothorax | NT | breeding | 2006 | unknown | A3 |
| Ramphocelus costaricensis | NR | breeding | 2006 | unknown | A2, A3 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| - | Osa (mixto) | Refugio de Vida Silvestre | 1 |
| 1975 | Corcovado | Parque Nacional | 20 |
| 1976 | Isla del Caño | Reserva Biológica | 2 |
| 1978 | Golfo Dulce | Reserva Forestal | 27 |
| 1985 | Golfito (mixto) | Refugio de Vida Silvestre | 1 |
| 1991 | Piedras Blancas | Parque Nacional | 7 |
| 1994 | Manglar Térraba-Sierpe | Humedal | 12 |
| 1994 | Lacustrino Pejeperrito | Humedal | <1 |
| 1995 | RHR Bancas (privado) | Refugio de Vida Silvestre | <1 |
| 1995 | Forestal Golfito S.A. (privado) | Refugio de Vida Silvestre | <1 |
| 1995 | Hacienda Copano (privado) | Refugio de Vida Silvestre | <1 |
| 1995 | Terraba-Sierpe | Ramsar Site, Wetland of International Importance | 14 |
| 1997 | Punta Río Claro (mixto) | Refugio de Vida Silvestre | <1 |
| 1998 | Donald Peter Hayes (privado) | Refugio de Vida Silvestre | <1 |
| 1998 | Preciosa Platanares (mixto) | Refugio de Vida Silvestre | <1 |
| 1998 | Carate(mixto) | Refugio de Vida Silvestre | <1 |
| 1999 | Quillotro (mixto) | Refugio de Vida Silvestre | <1 |
| 1999 | Río Oro (estatal) | Refugio de Vida Silvestre | 1 |
| 2000 | Pejeperro (mixto) | Refugio de Vida Silvestre | <1 |
| 2000 | Lagunazul (privado) | Refugio de Vida Silvestre | <1 |
| 2003 | Santuario Ecológ (privado) | Refugio de Vida Silvestre | <1 |
| 2007 | Saimiri (mixto) | Refugio de Vida Silvestre | <1 |
| 2013 | Lapa Rios Reserve | Conservation Easement | <1 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Forest | Mangrove | 7 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Sierpe Wetlands and Osa Peninsula (Costa Rica). Downloaded from
https://datazone.birdlife.org/site/factsheet/sierpe-wetlands-and-osa-peninsula-iba-costa-rica on 22/11/2024.