It was attributed to the Pakistan-based militant group Lashkar-e-Taiba. The same militants were held responsible for a deadly attack on an airforce base in January. The bird was found at Pathankot in the northern state of Punjab and police declared: “So we are investigating the matter very seriously.” Relations between India and Pakistan have worsened over the last few months. It is not the first time birds have been used in the long running dispute. Last year, Indian police seized a pigeon they suspected was being used for espionage by Pakistan. It was searched for carrying a spy camera, transmitter or hidden chip. In 2013, Indian security forces found a dead falcon fitted with a small camera, and in 2010 another pigeon was detained.