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Pacheco & Monteiro (1999)Pacheco et al. (1999)Rosa et al.(1999)Rosa et al. (2001a,b)

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Upper River Tejo (Portugal). Downloaded from https://datazone.birdlife.org/site/factsheet/upper-river-tejo-iba-portugal on 24/01/2025.