Madeira Birdwatching by Madeira Wind Birds
Recreation, Birding, Europe, Portugal - Madeira Wind Birds. Eco-tourism company site includes a brief overview and images of birding in Madeira.
https://www.madeirabirds.com/
Portugal
Brief introduction, trip reports, and tours.
Birding Holidays and Birdwatching in Portugal
https://www.birding-in-portugal.com/