Abstract

Crowing of Red, Grey, Green and Ceylon Jungle Fowls, 16 breeds of Japanese native chickens and White Leghorn breed was recorded on tape and analyzed by a sound spectrography for the level of pitch, the length of duration and the number of syllable. The pitch was the highest in Grey and Ceylon Jungle Fowls and the lowest in Koeyoshi. Red and Green Jungle Fowls and Chabo had a relatively hight pitch. Duration was the longest in Totenko and longer in Tomaru and Koeyoshi. The number of syllable was 3 to 5 in the Jungle Fowls, 2 to 4 in the breeds of the Japanese native chickens, and 4 in White Leghorn breed.

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