Species
Great Bustard
Otis tarda
The heaviest flying bird in the world
The Great Bustard is the headline of the plains — among the heaviest birds on Earth still capable of flight, and the species that puts the Elvas plains on the international map.
Where & when to see it here
On the open Elvas and Campo Maior plains, scanned from the public tracks. Resident year-round, but the unmissable time is early spring (March–April), when the males display.
Field marks & behaviour
Big, long-necked, sandy and barred, the males far larger than the females. The spring display is the spectacle: a male turns much of his plumage inside out into a great white bloom of feather, visible across a kilometre of stubble. Wary and far-seeing — which is exactly why you watch from the vehicle and never walk out toward a displaying bird.
Why the Alto Alentejo
These flat, open, far-seeing plains are the bustard's whole world — and the same openness that lets it display is the openness that made this the most fortified frontier in Iberia. The bird and the border read the same ground.
Plan your visit
Walk the same ground as the great bustard.
The newsletter
What's flying now
A short, seasonal note from the Serra — what to listen for, what's passing through.