The world's heaviest flying bird — the Castro Verde plain holds Portugal's most important population; displaying males in March are magnificent, puffing into a white foam ball.
Males produce an extraordinary farting trumpet call during display — large flocks winter in Alentejo cereal plains alongside Great Bustards in a stunning open-country scene.
Portugal is one of Europe's most important Roller strongholds — the brilliant blue-and-orange bird perches on roadside wires and swoops to catch large insects in the Alentejo.
A Portuguese and Spanish endemic separated from the similar Azure-winged Magpie — its long pastel-blue tail flashes through cork oak glades in noisy family parties.
One of Europe's rarest raptors — the Tagus Estuary and Doñana area in Portugal-Spain border region hold a slowly recovering population; white shoulder patches identify adults instantly.
Portugal has one of Europe's largest concentrations — thousands of nests on telegraph poles, chimneys, and purpose-built platforms throughout the Alentejo and Algarve.
The Tagus Estuary hosts Portugal's largest flamingo flock — up to 15,000 birds concentrate on the salinas around Alcochete and Samouco, visible from the highway bridge.
A swallow-like wader that hunts flying insects over salt pans — Portugal's Castro Marim holds one of Europe's most accessible breeding colonies above the Guadiana estuary.
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