The protest was staged over the slaughter of stray dogs and cats in Athens ahead of the Olympic Games 2004.
According to estimates, the authorities in Greece have poisoned or killed between 30,000 and 40,000 stray dogs and cats over the last year, a representative of the "Friends of Animals" organisation told reporters.
The president of the association did not manage to get an audience with anybody from the Greek Embassy so as to present the protest note, Embassy officials told the protesters to put the protest note into the embassy mail box.