1. Carey, D.E., et al. 1971. Indian J. Med. Res., 59:1708-1711. 2. Carey, D.E., et al. 1968. Indian J. Med. Res., 56:1340-1352. 3. Salim Ali, The Book of Indian Birds. 7th Ed. Bombay Natural History Society. Bombay, India. c. 1964. 4. Calisher, C.H., et al. Personal communication. 1983.
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