The Sixth International Ornithological Congress was scheduled for late spring of 1915, in Sarajevo.
It never took place.
As Maurice Boubier wrote in his Evolution de l’ornithologie,
the World War came, alas, and broke the bonds that were being formed among ornithologists from around the world. May peace and friendship among the peoples be reborn, soon and everlasting, for the greater good of scholarly relations.
Boubier’s words were published in 1925, but they seem, sadly, only too urgent today.
