British Ornithologists' Union
[ca] British Ornithologists' Union
[de] British Ornithologists’ Union
[eo] British Ornithologists' Union
[es] Unión Británica de Ornitólogos
[fa] اتحادیه پرنده‌شناسان بریتانیا
[fi] British Ornithologists’ Union
[fr] British Ornithologists' Union
[it] British Ornithologists' Union
[ja] イギリス鳥学会
[nl] British Ornithologists' Union