Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Supranational, multi-species indicators of EU farmland bird populations 1980–2002. (a) Common farmland birds. EU (solid line, countries=11, species=23) and Accession countries (dashed line, countries=5, species=21), (b) specialist farmland birds. EU (solid line, countries=11, species=12) and Accession countries (dashed line, countries=5, species=12). The arrow indicates the break-up of the Eastern Bloc in 1990.
