At the end of monsoon months particularly on moonless and foggy dark nights between 6 p.m. and 9:30 p.m., birds are distracted by the local people and they are attracted to lights. These dazed birds are apprehended utilizing bamboo beams by the localized. The localized tribal first took this natural phenomenon to be spirits soaring from the sky to terrorize them. This occurrence is not confined to a lone species, with Tiger Bittern, Black Bittern, Little Egret, Pond Heron, Indian Pitta and Kingfishers all being affected.
The well known late naturalist E. P. Gee conveyed this occurrence to global attention in the 1960s. He motored to Jatinga with famed ornithologist late Salim Ali. The cause of it is expected to be disorientation at high altitudes and high pace winds due to the widespread fog characteristic at the time. The zoological review of India dispatched Dr. Sudhir Sengupta to disclose this mystery. Dr Sengupta is of the attitude that climate situation make alterations in the magnetic qualities of the below ground water in this area. These alterations disturb the physiological rhythm of the local birds and they start behaving abnormally towards the causes of light. However, Dr Sengupta could not support his opinions.
The most latest recount of the phenomenon and its comparison with similar occurrences in another place in Malaysia, Philippines and Mizoram is discovered in the book The Birds of Assam by Assam's best known ornithologist Dr Anwaruddin Choudhury. He resolved that the birds, mostly juveniles and localized migrants, are distracted by high velocity winds at their roost. When the disturbed birds fly in the direction of lights as refuge they are strike with bamboo poles and slain or injured.
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