Do courtship songs differ individually in the domestic pigeon Columba livia domestica?

Measures of six temporal relations in the pigeon's courtship songs from four individual males which differed in age and courtship experience were taken. Intra- and interindividual variation was studied. Individual long term vocal stability is especially found in the whole length of the strophe, the length of the "trill'' phrase and the length of the "coo".