The song of the Chestnut Quail-thrush is fairly distinctive, consisting of a number of almost identical phrases repeated at about two second intervals seemingly ad nauseam. Each phrase consists of a number (up to about 25) of rapidly repeated piping notes rising slightly in amplitude but maintaining a similar pitch. In any singing session the birds occasionally alter the song by varying the pitch and rate of repetition of the notes. Another variation is to add a long sibilant "seeeet" to the end of each phrase. Other quail-thrushes do this also - so far as I can tell it has no special significance. Sample 437-01 consists of three variations by one male recorded at Round Hill, N.S.W. Sample 437-02 is from Yathong, N.S.W. The second variation includes the final "seeeet" note. The third variation starts with some sibilant notes (between two birds) and there is a Crested Bellbird in the background. Sample 437-03 is also from Yathong a different bird and two more variations. Sample 437-04 from the Gawler Ranges in S.A. is a complicated series of sibilant notes as two males confronted one another. High-pitched notes such as these form a large part of the repertoire of all the quail-thrushes - few people are familiar with them because you have to be quite close at hand to hear them. Getting close to quail-thrushes is not easy! You may have to turn this sample up a bit to hear it - unfortunately there are a fair number of other birds calling in the background. Sample 437-05 is from Eyre in W.A., all from the one male - there are four variations, the last one has the final "seeeets".