After travelling an aerial distance of three,228 km from Seychelles islands off East Africa coast to Mumbai area, a sub-adult sooty tern (seabird) succumbed to exhaustion on the Sanjay Gandhi Nationwide Park (SGNP) on Wednesday.

The state forest division and Bombay Pure Historical past Society (BNHS) stated this was a novel identification. “It is a first such documentation of this species protecting such a distance and reaching Mumbai. We have now determined to protect its physique by taxidermy,” stated Sunil Limaye, further principal chief conservator of forest (wildlife-west).

The hen was first recognized and rescued from Parmar Techno Centre premises in Vasai at 11.30am on Monday. “Not like different birds on this area, the species was distinctive. It was mendacity on the bottom alive however worn out. We have been astonished to see a tool hooked up to its again. The system was eliminated and we ensured it was hydrated,” stated Nitin Parab, an promoting skilled, who approached Waliv police for assist. The police handed over the hen to SGNP for additional veterinary care on Tuesday.

The seabird, identified to fly lengthy distances throughout oceans, had a 5gm satellite tv for pc tag (GPS logger tracker with ID 183016) hooked up to its again, and a metallic ring (used to tag birds) on its proper leg. “The tracker is price ₹three lakh and correct paperwork is underway to return it to Seychelles,” stated Vijay Barabde, RFO, SGNP.

The Wildlife Institute of India (WII), Dehradun, and BNHS have been contacted to hint the supply of the hen. “Utilizing the e-mail id offered on the system, we learnt that this hen was tagged together with 14 others by professor Chris Feare’s group WildWings Chicken Administration on Chicken Island, Seychelles, in August 2019,” stated Suresh Kumar, senior scientist, WII. He stated two of 15 terns have been geo-located off India’s west coast on July 13 and added, “Nevertheless, the opposite hen’s actual location is but to be traced.”

In the meantime, SGNP veterinarian Dr Shailesh Pethe and Kumar stated robust localised monsoon winds might have drifted the hen inland 6-Eight km away from sea. “Prima facie the hen died resulting from sheer exhaustion and dehydration,” stated Dr Pethe.

BNHS mapped the aerial distance covered by the sooty tern.

BNHS mapped the aerial distance lined by the sooty tern.

The hen’s wingspan was 30 inches and complete size 6-Eight inches. BNHS developed a map and calculated the precise distance the hen travelled (see map).

BNHS stated the hen was a uncommon coastal migrant, particularly for Mumbai area. “There are information of this hen breeding at Vengurla rocks in Sindhudurg. It was first recorded as early as 1881 from Bombay harbour and thereafter a number of information from the Maharashtra shoreline,” stated Raju Kasambe, assistant director, BNHS.

Specialists stated it was an attention-grabbing identification. “That is an instance of outstanding outcomes being given by satellite tv for pc monitoring expertise, however it’s disappointing that the hen didn’t survive. Sadly, the federal government is just not keen to ease restrictions on satellite tv for pc telemetry research for extra such outcomes,” stated Dr Asad Rahmani, member, Wetlands Worldwide South Asia.


Identified to nest on sandy islands and frequenting heat tropical waters, these birds have a darkish black again with black to gray flight feathers, slender white edges on its tail, and a white underbelly extending from the bottom of its beak, undersides of its wing span and as much as its toes.