The world Great Bustard population can be estimated at present around 44100-57000 birds. The Iberian Peninsula, with c.a 60-70% of the world population, probably represents the last stronghold of the species in the world. All other populations surviving at present are much smaller, many have suffered dramatic decreases, and some are now threatened with extinction. The species is considered globally threatened, and in Spain it was classified as vulnerable until 2011. This means that the survival of Spanish populations might be endangered by human-induced changes in the habitat, catastrophic events, or any other causes which might affect their population dynamics. More information in Alonso & Palacín (2010) PDF and Palacín & Alonso (2008) PDF.
For further information click each country:
Central Europe
Germany:
www.grosstrappe.de
Heinz Litzbarski, Bärbel Litzbarski
Torsten Langemach
Austria:
www.grosstrappe.at
Rainer Raab
Hungary:
András Bankovics
Sandor Farago, Reka Incze
Imre Fater
Anna Prager
Russia
Mikhail L. Oparin, Olga S. Oparina
Alexander Antonchikov
Anatoli Khrustov
Turkey
Nurettin Özbagdath
Dogal Hayati Koruma Dernegi (DHKD)
C. Heunks
Recep KARAKAS
Iran
Ahmad Barati
China
Ma Ming
Mongolia
Aimee Kessler
Rest of Asia
Simba Chan
Africa
Zine Arhzaf
Nourdine Mouati
Mohamed Dakki
Iberian Peninsula
Spain: Distribution in Iberia
Portugal: Pedro A. Rocha
Francisco Moreira