Camera Traps and Motion Sensors Show the Wacky Side of Wildlife


The foggy morning had given method to an excellent solar. Despite the chill in the air, I may really feel sweat beginning to bead down my neck as my discipline assistant and I made our method to a waterhole in the Kanha Tiger Reserve. It was December 2019, and I had simply began the fieldwork element of my MSc undertaking. I needed to establish and look at spatial and temporal patterns in how wild ungulates in Kanha used waterholes: when and the place the animals most popular to drink water. The bulk of my knowledge was collected utilizing digicam traps.

Walking by means of the jungle, I used to be excited. Just 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.

Camera traps, or path cameras, usually consist of a digicam unit together with a movement sensor. They may be calibrated to take a set quantity of photographs or document movies at any time when motion is detected. Once put in, they’re succesful of passively accumulating timestamped information of wildlife presence in a non-intrusive method. For my undertaking, I wanted to know which species have been visiting waterholes for a interval of at the very least two weeks.

Setting up a digicam lure at a watering gap.
Photo Credit: Tara Rajendran

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

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

Most animals seem to understand 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 at all times got here and spent a couple of minutes sniffing round the traps.

pretend tiger tara wildlife

Here I’m pretending to be a tiger as a way to ensure the digicam lure was working. I later went and checked the digicam lure to confirm that photographs have been being taken as anticipated.
Photo Credit: Tara Rajendran

One enterprising tigress thought it was a good suggestion to scent-mark one of my digicam traps. As I used to be going by means of the picture 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. Needless to say, the subsequent few pictures have been extraordinarily blurry!

Unlike their elders, who have been happy with a couple of curious sniffs, tiger cubs engaged in a extra thorough inspection by nudging, poking, pushing and even gnawing at the traps. They as soon as chewed up a strap and left the digicam lure utterly tilted and barely hooked up to its submit.

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

Deep inside the forest, these small swimming pools offered 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 consuming. During this time, the juveniles would play. Their toys of selection, of course, have 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 pictures. Despite not emitting any seen gentle, the lure makes a faint whirring noise when a photograph is taken and that might be what the tigers are taking a look at.
Photo Credit: Tara Rajendran

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

I’ve photographs of them peering into the digicam lure from the entrance and sideways, and even climbing on prime of the picket posts simply to bend over and look at the lure from that angle. I used to tug the straps so tight that my fingers have been rubbed uncooked, however, simply by sheer persistence, they managed to dislodge many a lure, even utterly untying a couple of.

Out of all the animals who inadvertently dislodged my digicam traps, solely wild boars have my sympathy. While going by means of some footage recorded throughout 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 an extended leisurely scratch by rubbing itself in opposition to the canvas straps wound all alongside the picket submit.

bison inspecting tara wildlife

A pair of gaur (Indian bison) inspecting the digicam lure.
Photo Credit: Tara Rajendran

Despite the nice photographs and humorous tales that have been an inevitable end result of wildlife interacting with the traps, there was at all times an opportunity of shedding knowledge. The forest guards at Kanha have been my guardian angels on this regard. They used to accompany me on my periodic visits to completely different waterholes and have been greater than prepared to maintain an eye fixed out for any displaced digicam traps whereas out on patrol. Many instances, they requested me about the varied doable settings and have been inquisitive about the ensuing photographs.

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

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

In this state of panic, I recruited my mother and father and fiancé as unpaid labor. I offered 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, utterly of their very own curiosity, focus on the consuming habits of the barasingha!

chital surprised tara wildlife

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

Tara Rajendran forayed into the discipline of wildlife and ecology after she was bored by the unchanging life of an IT skilled. After having fun with the fantastic campus life at NCBS which challenged her mental and bodily capabilities, she lately wrapped up a yr lengthy undertaking at WWF India. Some of the most memorable moments of her life are from her fieldwork days spent in the forests of central India. She hopes to get extra writing finished throughout lockdown.

This sequence is an initiative by the Nature Conservation Foundation, underneath their programme Nature Communication to encourage nature content material in all Indian languages. If you are enthusiastic about writing on nature and birds, please refill this type.


How to search out the greatest offers throughout on-line gross sales? We mentioned this on Orbital, our weekly know-how podcast, which you’ll be able to subscribe to through Apple Podcasts, Google Podcasts, or RSS, obtain the episode, or simply hit the play button under.




Leave a Reply

Your email address will not be published. Required fields are marked *