Camera Traps and Motion Sensors Show the Wacky Side of Wildlife


The foggy morning had given approach to a superb solar. Regardless of the coolness within the air, I may really feel sweat beginning to bead down my neck as my discipline assistant and I made our approach to a waterhole within the Kanha Tiger Reserve. It was December 2019, and I had simply began the fieldwork part of my MSc undertaking. I wished to determine and study spatial and temporal patterns in how wild ungulates in Kanha used waterholes: when and the place the animals most well-liked to drink water. The majority of my knowledge was collected utilizing digicam traps.

Strolling by means of the jungle, I used to be excited. Simply two weeks earlier than, I had arrange my first batch of digicam traps. My plan that day was to retrieve them and see what I had discovered. For a younger researcher like me, it felt like I used to be strolling in the direction of buried treasure.

Digital camera traps, or path cameras, sometimes include a digicam unit together with a movement sensor. They are often calibrated to take a set variety of images or file movies each time motion is detected. As soon as put in, they’re able to passively accumulating timestamped information of wildlife presence in a non-intrusive method. For my undertaking, I wanted to know which species had been visiting waterholes for a interval of at the very least two weeks.

Establishing a digicam lure at a watering gap.
Photograph Credit score: Tara Rajendran

Upon reaching the waterhole, I used to be relieved to see that my digicam traps had been intact and roughly pointing in the identical route I had left them in. I’ve usually been requested whether or not animals discover the digicam traps. The machine itself is sufficiently small to carry in a single hand. Whereas older fashions are normally geared up with a flash for nighttime, many more and more function an array of Infrared LEDs which emit no seen gentle.

The machine is stationary and operates silently. It’s fairly affordable to imagine that they might go unnoticed by animals. Over the course of my fieldwork, although, I discovered that this was not often the case.

Most animals seem to grasp when a digicam lure has been set. The grownup ungulates, particularly chital, sambar, barasingha, and wild boar normally got here shut for a cursory sniff, after which they ignored the traps. The preliminary inspection normally yielded hilarious selfies, with solely an eye fixed, ear or antler seen. The carnivores virtually all the time got here and spent a couple of minutes sniffing across the traps.

pretend tiger tara wildlife

Right here I’m pretending to be a tiger as a way to be certain that the digicam lure was working. I later went and checked the digicam lure to confirm that images had been being taken as anticipated.
Photograph Credit score: Tara Rajendran

One enterprising tigress thought it was a good suggestion to scent-mark certainly one of my digicam traps. As I used to be going by means of the photograph information, I may see her method and rub her cheek in opposition to the lure, after which she proceeded to liberally spray her urine throughout my lure. For sure, the subsequent few images had been extraordinarily blurry!

In contrast to their elders, who had been glad with a couple of curious sniffs, tiger cubs engaged in a extra thorough inspection by nudging, poking, pushing and even gnawing on the traps. They as soon as chewed up a strap and left the digicam lure fully tilted and barely hooked up to its publish.

However the species which gave me essentially the most hassle throughout fieldwork was a species I used to be not even finding out, the langur. I discovered that langur troops normally frequented waterholes round midday.

Deep contained in the forest, these small swimming pools supplied a cool respite from the scorching noontime warmth. A troop would keep at a waterhole anyplace between one to 2 hours, with the adults unfold out, resting, grooming and sometimes ingesting. Throughout this time, the juveniles would play. Their toys of selection, in fact, had been my poor digicam traps.

tiger midnight tara wildlife

A tigress and her cubs having a midnight drink. This digicam lure had an array of infrared LEDs for nighttime images. Regardless of not emitting any seen gentle, the lure makes a faint whirring noise when a photograph is taken and that may very well be what the tigers are taking a look at.
Photograph Credit score: Tara Rajendran

At bigger waterholes, the cameras had been positioned all alongside the perimeter. This meant that, in lots of images, a number of digicam traps had been seen secured to wood posts. This setup additionally gave me photographic proof of the sheer period of time the langurs spent twiddling with the digicam traps. Monkeys actually know tips on how to method an issue from all angles.

I’ve images of them peering into the digicam lure from the entrance and sideways, and even climbing on high of the wood posts simply to bend over and study the lure from that angle. I used to tug the straps so tight that my palms had been rubbed uncooked, however, simply by sheer persistence, they managed to dislodge many a lure, even fully untying a couple of.

Out of all of the animals who inadvertently dislodged my digicam traps, solely wild boars have my sympathy. Whereas going by means of some footage recorded through the preliminary levels of my undertaking, I discovered a video the place there have been no animals to be seen, however the digicam was swaying gently back and forth.

The thriller was unexpectedly solved a couple of days later when, whereas on discipline, I noticed a wild boar having fun with a protracted leisurely scratch by rubbing itself in opposition to the canvas straps wound all alongside the wood publish.

bison inspecting tara wildlife

A few gaur (Indian bison) inspecting the digicam lure.
Photograph Credit score: Tara Rajendran

Regardless of the good images and humorous tales that had been an inevitable results of wildlife interacting with the traps, there was all the time an opportunity of shedding knowledge. The forest guards at Kanha had been my guardian angels on this regard. They used to accompany me on my periodic visits to completely different waterholes and had been greater than keen to maintain an eye fixed out for any displaced digicam traps whereas out on patrol. Many occasions, they requested me in regards to the varied attainable settings and had been curious in regards to the ensuing images.

Once I began my fieldwork, my high concern was ensuring I had sufficient knowledge. In my head, I had a tough plan of the process to observe. I knew that the images needed to be organised in a particular method, and every photograph needed to be tagged with all of the completely different species current in it. What I had not anticipated was the sheer quantity of images. By the tip of my fieldwork, I had amassed over 1.5 lakh images.

In sheer panic on the quantity of unanticipated work, I spent all my free time tagging images over limitless cups of tea on the native dhaba. By the tip of my third cup, there would normally be a crowd of curious onlookers gathered round to look at. Regardless of my steady efforts, I used to be unable to maintain up with the sheer quantity of images pouring in.

On this state of panic, I recruited my mother and father and fiancé as unpaid labor. I supplied them a crash course in figuring out ungulates and utilizing the tagging software program. It was by means of their relentless efforts that I used to be in a position to keep on schedule. I solely realized how far we had all come after I overheard my mother and father, fully of their very own curiosity, focus on the ingesting habits of the barasingha!

chital surprised tara wildlife

It appears to be like like this chital is saying “Yikes! we’re being watched!”
Photograph Credit score: Tara Rajendran

Tara Rajendran forayed into the sphere of wildlife and ecology after she was bored by the unchanging lifetime of an IT skilled. After having fun with the great campus life at NCBS which challenged her mental and bodily capabilities, she just lately wrapped up a 12 months lengthy undertaking at WWF India. A number of the most memorable moments of her life are from her fieldwork days spent within the forests of central India. She hopes to get extra writing achieved throughout lockdown.

This sequence is an initiative by the Nature Conservation Basis, beneath their programme Nature Communication to encourage nature content material in all Indian languages. For those who’re excited about writing on nature and birds, please replenish this form.


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