A drongo might be common, but it is no ordinary bird. Several of the species are accomplished mimics; their imitation of a cat’s meow is nothing short of masterful. The mynah is a brilliant mimic, too, using the skill to connect to their own kind or human friends. These birds do much more than mimicry, for birds, in general, are fascinating.
A Black Drongo
| Photo Credit:
ANI
However, do we know how our drongos and mynas are doing? Are their numbers increasing, or are they struggling to survive? Watching them closely unravels stories about not just their world but also the environment we share with them. Since 2015, birdwatchers across Keralam have been recording wild birds, which culminated in the
Bird watchers at Kerala University campus, Karyavattom
| Photo Credit:
Navaneeth Sini George
Bird Atlas 2.0
A collective exercise involving expert bird watchers and amateurs from across the State, the atlas is one of the largest citizen science initiatives in the country, says PO Nameer, dean, College of Climate Change and Environmental Science, Kerala Agricultural University, Thrissur, who has been a leading force behind the atlas and is one of its State co-ordinators.
Volunteers on a survey
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Special Arrangement
For the first atlas, the total area of the State — 38,863 sq.kilometre — was divided into 4,324 sub cells where volunteers conducted surveys. “The Bird Atlas 2.0 revisits the exact same cells, which will give us specific information on what has changed in the last 10 years. Birds are indicators of climate change, as modification of their habitat can tell us about changes in climate and ecology,” he adds, citing the example of the peafowl.
Peafowl
“The peafowl has been a species of dry open country and it has no historical presence in Keralam, which is humid and dense. The earliest bird documentation by the British from the 1800s to the early 1900s in the Travancore and Kochi regions does not indicate the presence of peafowl. Even ornithologist Salim Ali’s documentation in the 1930s does not include peafowl from much of Keralam. Now, however, the peafowl population has spread, which means the State is transforming from a humid, dense, wet zone to dry open country,” he says. “Several other species endemic to Kerala have been on the decline. With Atlas 2.0, we will be able to give scientific information to policy makers and stakeholders,” he adds.
A systematic approach
The work for the atlas is systematic and organised, with volunteers required to make four checklists of 15-minute duration in the dry (January to March) and wet (July to September) seasons. The surveys are done in the mornings (6.30am to 8.30am) and evenings (4.30pm to 6.30pm) and the observations are recorded on e-Bird (an online app used by birdwatchers across the wrold). Some volunteers even make use of Merlin, an app that helps identify bird calls.
A mynah
| Photo Credit:
V RAJU
Student volunteers on the Kerala University campus, Thiruvananthapuram
Praveen J, one of the State coordinators of the first atlas, was instrumental in designing its methodology. “While analysing semi-structured citizen-science data often requires complex statistical models, we deliberately designed the atlas methodology to avoid this requirement. We developed a standardised protocol so that data from the first and second iterations can be directly compared, reducing the uncertainty in our conclusions,” says the former IT professional and passionate birder, who is now part of the Nature Conservation Foundation, an NGO based in Bengaluru.
The first edition of the Bird Atlas, launched in 2021
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SPECIAL ARRANGEMENT
Veteran birder Jayadev Menon, a business coach based in Kochi, says the atlas goes beyond bird diversity to include information such as the presence of water bodies, fruiting fig trees and invasive plants. “It gives a complete picture of the habitat. By dividing the State into well-defined grids, almost all habitats are covered including plains, foothills, riverine, pelagic, urban, suburban, forests, and mountainous,” adds Jayadev, who has been part of several bird surveys, including the Wetland International’s annual mid-winter waterbird census. Incidentally, Jayadev also completed a personal milestone on July 28 this year — 10 years of non-stop reporting on the e-Bird app, on an everyday basis. That is 24,000 checklists on e-Bird (amounting to over 6,000 hours if birding in 10 years). He have seen over 505 species of birds in the last ten years in India.
Community-building
Over 10 years, the initiative has become a sort of a community-building exercise in Wayanad, says Rathish RL, assistant professor, Kerala Veterinary and Animal Sciences University, Wayanad and one of the State co-ordinators of the atlas 2.0. “We have been able to create a wide network of birders in Wayanad, which was not the case 10 years ago. It is a region rich in bird diversity. One can easily identify 15 to 20 species of birds here at a given time,” he adds. The involvement of common people makes the atlas more relevant, he adds. Students, homemakers, professionals and retired senior citizens are volunteering for the atlas.
Student volunteers
For student volunteers, it is an enriching experience. Nandita Raghunath, who is doing her second year B.Sc Zoology at St. Teresa’s College, Kochi, says birding teaches her something new every day. “I learnt that a drongo mimics cats and other animals to trick them into stealing their food or to scare away competitors.” Nandita is among the young volunteers for the atlas 2.0.
For Navaneeth Sini George, a first year student of MSc Zoology at Kerala University, Karyavattom, Thiruvananthapuram, the atlas presents an opportunity to explore new places. “Usually, one tends to go to certain pockets known for bird diversity. Now that bias is gone. An area is divided into equal grids, which cover urban, rural and semi-rural zones. I got to explore Poovar region and the Kanyakumari border,” says Navaneeth. The Kerala University campus was a sub cell, he adds.
By revisiting the same locations and drawing on the observations of hundreds of birders, the atlas hopes to offer a clear picture of how the State itself is changing. The Bird Atlas 2.0 is expected to be completed in three years and will then become one of Asia’s largest repeat atlases.
