Data Zone
The site was identified as internationally important for bird conservation in 2002 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 |
|---|---|---|---|---|
| Pin-tailed Sandgrouse Pterocles alchata | LC | resident (2002) | 3–6 pairs | C6 |
| Red-necked Nightjar Caprimulgus ruficollis | NT | breeding (2002) | 10–100 pairs | A3 |
| Black Stork Ciconia nigra | LC | breeding (2002) | 18–19 pairs | A4i, B1i, B2, C6 |
| Eurasian Eagle-owl Bubo bubo | LC | resident (2001) | 6–10 pairs | C6 |
| Black-winged Kite Elanus caeruleus | LC | resident (2002) | 1–5 pairs | C6 |
| Egyptian Vulture Neophron percnopterus | EN | breeding (2002) | 20–22 pairs | B2, C6 |
| Short-toed Snake-eagle Circaetus gallicus | LC | breeding (2001) | 5–10 pairs | C6 |
| Griffon Vulture Gyps fulvus | LC | resident (1999) | 110–112 pairs | B2, C6 |
| Cinereous Vulture Aegypius monachus | NT | resident (2002) | 1 pairs | C6 |
| Golden Eagle Aquila chrysaetos | LC | resident (2002) | 6–7 pairs | C6 |
| Bonelli's Eagle Aquila fasciata | LC | resident (2002) | 5–7 pairs | B2, C6 |
| Booted Eagle Hieraaetus pennatus | LC | breeding (2001) | 11–20 pairs | B2, C6 |
| Red Kite Milvus milvus | LC | breeding (2001) | 1 pairs | C6 |
| Black Kite Milvus migrans | LC | breeding (2001) | 6–10 pairs | C6 |
| Calandra Lark Melanocorypha calandra | LC | resident (2002) | common | C6 |
| Greater Short-toed Lark Calandrella brachydactyla | LC | resident (2002) | frequent | C6 |
| Spectacled Warbler Curruca conspicillata | LC | breeding (2002) | rare | A3 |
| Blue Rock-thrush Monticola solitarius | LC | resident (2002) | 80–200 pairs | B2 |
| Black Wheatear Oenanthe leucura | LC | resident (2001) | uncommon | A3, B2, C6 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2002. The most recent assessment (2005) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2005 | not assessed | low | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | good | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Transportation and service corridors | happening now | few individuals/small area (<10%) | rapid decline (>30% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 2000 | Tejo Internacional | Parque Natural (V) | 77 |
| 2000 | Tejo Internacional | Natural Park (-) | 65 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Shrubland | 55 | Sclerophyllous scrub, garrigue and maquis |
| Artificial/Terrestrial | 15 | Arable land; Perennial crops, orchards and groves; Forestry plantations |
| Wetlands (inland) | 15 | Water fringe vegetation; Rivers and streams |
| Forest | 10 | Broadleaved evergreen woodland |
| Rocky areas (eg. inland cliffs, mountain peaks) | 5 | Scree & boulders; Inland cliffs |
| Land use | % of IBA |
|---|---|
| fisheries/aquaculture | - |
| agriculture | - |
| forestry | - |
| hunting | - |
| tourism/recreation | - |
| nature conservation and research | - |
| water management | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Upper River Tejo (Portugal). Downloaded from
https://datazone.birdlife.org/site/factsheet/upper-river-tejo-iba-portugal on 22/12/2024.