Acta Ornithologica

Airo

Aves journal

Aves y Naturaleza

AVOCETTA

Bird Ringing Centre

Centre de Recherche sur les Ecosystèmes d’Altitude

Der Falke

Egretta

Hamburger Avifaunistische Beitraege

Instituto da Conservação da Natureza e das Florestas

Italian Center of Ornithological Studies (CISO)

Journal of Avian Biology

Komisja Faunistyczna SO PTZool

Macedonian Ecological Society (in Macedonian)

Max-Planck-Institute for Ornithology

CAnMove – Centre for Animal Movement Research

NATURA 2000 data

Nos Oiseaux

Ornis Svecica

Ottenby Bird Observatory

Revista de Anillamiento

Save the Raptors

SOR / BirdLife

Southeast European Saker Falcon Network

Swedish Rare Bird Catalog 

http://www.ficedula.ch/