Tejo estuary (370)
Portugal, Europe
Biodiversity elements triggering KBA criteria
| Taxonomic group | Scientific name | Common name | IUCN Red List category | Year | KBA criteria |
|---|---|---|---|---|---|
| Aves | Limosa limosa | Black-tailed Godwit | NT | 2002 | D1a |
| Aves | Recurvirostra avosetta | Pied Avocet | LC | 2002 | D1a |
Other species not triggering KBA criteria
| Taxonomic group | Scientific name | Common name | IUCN Red List Category | Year | |
|---|---|---|---|---|---|
| Aves | Mareca penelope | Eurasian Wigeon | LC | 2002 | |
| Aves | Ciconia ciconia | White Stork | LC | 2002 | |
| Aves | Himantopus himantopus | LC | 2002 | | |
| Aves | Charadrius alexandrinus | LC | 2002 | | |
| Aves | Glareola pratincola | Collared Pratincole | LC | 2002 | |
| Aves | Anas crecca | Common Teal | LC | 2002 | |
| Aves | Tyto alba | Common Barn-owl | LC | 2002 | |
| Aves | Sternula albifrons | Little Tern | LC | 2002 | |
| Aves | Pluvialis squatarola | Grey Plover | LC | 2002 | |
| Aves | Tetrax tetrax | Little Bustard | NT | 2002 | |
| Aves | Elanus caeruleus | Black-winged Kite | LC | 2002 | |
| Aves | Platalea leucorodia | Eurasian Spoonbill | LC | 2002 | |
| Aves | Anser anser | Greylag Goose | LC | 2002 | |
| Aves | Phoenicopterus roseus | Greater Flamingo | LC | 2002 | |
| Aves | Egretta garzetta | LC | 2002 | | |
| Aves | Luscinia svecica | Bluethroat | LC | 2002 | |
| Aves | Ardea purpurea | Purple Heron | LC | 2002 | |
| Aves | Calandrella brachydactyla | Greater Short-toed Lark | LC | 2002 | |
| Aves | Asio flammeus | Short-eared Owl | LC | 2002 | |
| Aves | Calidris alpina | Dunlin | LC | 2002 | |
| Aves | Circus pygargus | Montagu's Harrier | LC | 2002 | |
| Aves | Caprimulgus europaeus | European Nightjar | LC | 2002 | |
| Aves | Circus aeruginosus | Western Marsh-harrier | LC | 2002 | |
| Aves | Hieraaetus pennatus | Booted Eagle | LC | 2002 | |
| Aves | Ixobrychus minutus | LC | 2002 | | |
| Aves | Melanocorypha calandra | Calandra Lark | LC | 2002 | |
Recommended citation
Key Biodiversity Areas Partnership (2025) Key Biodiversity Areas factsheet: Tejo estuary. Extracted from the World Database of Key Biodiversity Areas. Developed by the Key Biodiversity Areas Partnership: BirdLife International, IUCN, American Bird Conservancy, Amphibian Survival Alliance, Conservation International, Critical Ecosystem Partnership Fund, Global Environment Facility, Re:wild, NatureServe, Rainforest Trust, Royal Society for the Protection of Birds, World Wildlife Fund and Wildlife Conservation Society. Downloaded from https://keybiodiversityareas.org/ on Dec 18, 2025.