A questionnaire survey and field investigation in the shrimp farms were conducted in the Kannur District of South India from 28thJuly, 2013, to 5th August, 2013. A total of 30 shrimp farms were studied in Kannur district of Kerala. Shrimp farms were facing many threats of which only 30% were due to bird menace. Among the different bird species Cormorants were observed to be threat to shrimp farming. Group forager, diver and being an opportunistic feeder make Cormorants an ideal predator of shrimps (53%). Our present study revealed that cormorants predate and feed nestlings with large quantity of shrimps.