Monday, May 19, 2025
Wayanad visit - 2019
Friday, May 16, 2025
Ethical Birdwatching: The Harmful Effects of Playing Recorded Bird Calls
It is not a natural call: Stop playing it
Using recorded bird calls for sightings or photography is unethical and harmful, as it disrupts birds’ natural behaviors and causes stress
Birds use two types of vocalisations: Calls and songs. Calls are generally short and simple, while songs tend to be longer and louder.
Birds call to maintain contact with companions using “contact calls.” Nestlings use “begging calls” to request food. Night-time migrants maintain contact with “flight calls.” “Food calls” attract offspring or flockmates to new food sources. Birds use “alarm calls” to warn others of danger and “mobbing calls” to summon others to harass a predator. “Aggressive calls” help settle conflicts between birds.
Exhaustive, right?
Birds sing “songs,” on the other hand, loudly and persistently to attract mates or repel territorial intruders.
So, when we play a bird call without understanding its type or purpose, simply to attract a specific species, we risk making serious errors. The consequences may be dire. Imagine the stress, confusion, and harm caused by repeatedly playing random bird calls through gadgets!
Consider this: you play a recorded call to attract birds feeding out of sight. Unknown to you, the recording is an alarm call. On hearing it, the flock panics and scatters. They return later, but you play the call again. This continues all day. In doing so, you deprive them of vital feeding time.
How?
Birds are “homeotherms,” like us, organisms that maintain a stable internal body temperature regardless of external conditions. But they have high metabolic rates and must eat frequently. Small birds have especially high energy needs. Interrupting their feeding may push them towards starvation and death.
Playback stops birds from doing what they should — feeding their young, avoiding predators, or defending territory. Such calls can act as distress signals, causing parents to leave the nest to investigate. Prolonged absence or missed feeds can endanger their offspring. Additionally, exposed parent birds become vulnerable to predators. Playback songs can be interpreted as territorial threats and may provoke aggression. This alters birds’ behaviour — parenting, defending, and foraging — depending on perceived threats.
Studies show that recorded songs played during breeding season provoke birds to sing intensively for days. Singing consumes a great deal of energy. If this energy isn’t replenished in time, the bird may die.
Other studies have found birds abandoning their territory when they hear recorded rival vocalisations. André MX Lima and James Joseph Roper documented this in their study, The use of playbacks can influence encounters with birds: An experiment.
Such disruptions are numerous. Foraging, parenting, and territorial defence are just a few daily bird behaviours. By playing recorded calls, we disturb and manipulate these, often causing stress and long-term behavioural damage.
Renowned ornithologist and independent researcher Gurpartap Singh, based in Mohali, Punjab, said, “Playing recorded bird calls to lure birds is generally not desirable, as it can be unethical and potentially harmful, causing stress and disrupting natural behaviours. It can lead to energy loss and negatively affect breeding and social structures, especially if overused. It may be permissible for scientific research, but only with caution and due consideration of the potential harm.”
Playback is illegal under Section 9 of the Wildlife Protection Act, 1972 as well. However, poor enforcement renders it ineffective. This practice is rampant across birding hotspots in India for sighting and photography. Worse still, hunters and bird-catchers use playback to lure birds for illegal trade, contributing to population decline.
Many conservationists are fighting this. Notably, Sanjay Sondhi — a Dehradun-based naturalist and founder of bioinformatics platform Titli Trust — has partnered with the Uttarakhand Forest Department to run awareness campaigns and sensitise naturalists and guides on the harms of bird call playback. In recognition of their support, the forest department issued appreciation badges to bird guides in Jim Corbett National Park.
After complaints of unethical bird call playback in Deulgaon village (Supe Forest area), a breeding site for Mottled Wood Owls near Pune, the forest department banned photography at the site.
Tuesday, May 13, 2025
What people should learn from rivers
Friday, May 9, 2025
A peek into the world of wasps
Wasps.
They haven't troubled us so far, and we have left them alone. I see them going to the flowers in my balcony and feeding on the nectar in the Kopsia flowers.
And yet, so little do I know about these winged insects. The MNS Wasp Walk on 26th April was a perfect Wasp 101 then. Who better than Yuvan to tell us all about these insects.
I did not know -
Pollinators
Paralysers
Proficient architects designers
Progressive Provisioners
I saw a Black Pearl tree for the first time in bloom. Those blue-black seeds standing out against the sky. |
We wandered around the lily pond, watching the Stingless bees buzz around the lily that looked like it was lit from within. |
As we returned to the Premna, the wasp action was heating up. Yuvan also filled us in with so many incredible facts about these insects.
- All species of insects have a parasitoid wasp that attacks their eggs, larva and adults - and so wasps are the biggest natural "pesticide" or bio-control agents, if you will call it that. If there were no wasps, there would be much more crop destruction. Experiments have been done to introduce wasps as pest controllers and result have been encouraging.
- The paper wasps breakdown of celluose and plant fiber was the inspration for paper-making starting in China and there is some relation to the first attempts at ink as well.
- I learnt about the work of Prof Raghavendra Gadagkar of the IISc, who has studied the paper wasps (similar to the ones outside my window) and eusocial behavior among insects. Some esoteric concepts of how the Queen wasp becomes the queen wasp more by pheromone control rather than by aggression. I looked up the professor and came across this great talk Inside the Wasp Nest: Understanding Insect Societies where he describes how ants, bees, wasps and termites live in complex societies, and how the Ropalidia marginata society is unique in the way they choose their queen, without a nest-wide aggression. I was fascinated with the "common sense" experimental designs that he explains - from paint-tagging wasps to identify and differentiate (since they all look the same including the queen) to creating mesh barriers and removing the queen and putting her back.
- Yuvan mentioned JH Tumlinson, whom I looked up - he has worked on insect-plant interactions and the role of chemical signals in these interactions, especially with wasps. He has studied how plants respond to herbivore damage and how insects exploit plant signals for finding hosts or defenses. All pretty cool stuff. Among his entomological findings were that plants attacked by feeding insects have the capability to synthesize and release volatile organic chemicals. These chemicals then attract small parasitoid wasps, that in turn locate and parasitize the caterpillars. This "wasp calling" synamone chemical of the plant is induced by compounds in the oral secretion of the caterpillars.
- Tumlinson passed away in 2022, but he has mentored many students in the area of wasps and Ted Turlings is one such, and he's working on the synamones emitted by maize that "call" the specific parasitoid wasp to rescue it from the caterpillars! (He's also a birdwatcher in his spare time, I like that!)
This photo by Hrishu of a Spider Wasp - they hunt spiders. I did see this with my binoculars. |
Photo by Hrishu of Orange spotted flower wasp that I sadly missed. |
And thanks to Yuvan and the Palluyir team for this very handy book with great pictures and simple writing in English and Tamil.
MNS member Venky Ramaswamy said:
It was wonderful to meet Yuvan Aves for the very first time at the Wasp Walk yesterday! After a brief, we were then introduced to building of nests by wasps – on the walls, below the ceilings, underneath the sun-shades, and on the wooden frames of the windows, etc. I have destroyed many of these nests, many a times during my lifetime, with almost negligible knowledge. One of the key messages I picked up from today’s walk was the phenomenal contribution of the wasps to the society, and the need to appreciate their crucial roles, and learn to co-exist. Yuvan stood in front of a small tree, with bright green leaves, white flowers, and tiny fluorescent fruit bloom. It was Premna Serratifolia. During one of his wasp surveys on the campus, he observed forty different species of wasps, pollinating this tree. Every direction he was pointing, we
were zooming in our cameras and binoculars. Yuvan was full of information and we were overwhelmed by his vast, oops...wasp knowledge! Wealth of information about how plants communicate with wasps, presence of flower wasps indicate the quality of soil, and also act as an amazing pollinator, memory guilds of greater banded hornet and its reference in Agananuru – a classical Tamil poetic work of Sangam literature, and so on. The session almost came to an end, with a Vaa Ma Minnal punch, when we were pointed to watch an act of courtship behavior of paper wasps! It was an awesome learning experience. Best Wishes Yuvan. Thanks to Palluyir Trust Team, for the amazing book with extensive research on Wasps. Kudos!
There are clear photos of the wasps that I commonly see, as also wasp nests. The book is available as a free download here.
During the walk, we learned about the true democratic aspects of wasp societies, their nest- building behaviour, their stings and more. Karna and Tarun, two young participants, asked insightful questions throughout, keeping everyone engaged and Aravind on his toes.
We explored the remarkable diversity of wasp nests—each unique in location and material. Highlights included the nests of cluster wasps, tube-maker and ridged-nest potter wasps (the latter using a cement-like substance), and a blue mud dauber nest tucked inside an old lock’s keyhole. As we searched for sand wasps, some of us spotted a striking velvet ant (which, despite its name, is actually a type of wasp), clearly the highlight of the day.
We also enjoyed observing Ammophila, which, due to its size, was easy to spot and photograph. Several Vespidae wasps zipped overhead, becoming more active as the sun grew stronger.
Fascinating facts flowed throughout the walk—like how some plants release chemicals to attract wasps for pollination, even without insect threats, and how parasitoid wasps earn their name as they ultimately end up killing their hosts- good for pest/insect control I thought.
The wasp walk was both fun and enlightening, highlighting the vital role of wasps in the ecosystem and helping us appreciate these misunderstood creatures.
Now, if the Velvet ant is a wasp, then why call it an ant? It is confusing as it is, and mimicry in the natural world is rife, but we humans can atleast name them appropriately can't we? Just saying.
Sunday, April 20, 2025
BeetleMania 2024
I wrote this for Creative Expressions of Monsoon Beauty / Beetles.
The Beetle Verse
Each one - a bag full of tricks
Check for elytra
And here are my current favourite picks.
The Tiger beetle is now top of my shortlist
Unaware was I such a nifty predator exists
Running with speed
Huge appetites indeed
In my mum’s sand garden, its territory persists.
The Dung beetle I saw was quite the roller
Hardworking nutrient recycling tiny soldier
With hind legs so strong
That dung ball moved along
Dodging that “helper” who was a robber!
Now there are Jewel bugs and beetles iridescent
How to distinguish - my perennial lament
The bug is a sucker
The beetle a chewer
Whichever, Jewel spotting will leave you content.
Rhino beetles, large, dark-coloured and horned
The males stage mating battles, be warned
They look so ferocious
But really that’s atrocious
‘Cos they’re plant eating, non-biting - that’s confirmed!
At the bottom of my list are those Weevils
I must admit I saw them as pests and evil
Eating my channa and rice
Is really not nice
But my viewpoint is maybe medieval?
And those are only the beetles that I have seen
Others, like the Dermestids keep the skeletons clean
Stags, Ground Beetles and Blisters
Whirligigs, Water and Algae-feeders
So many more nature’s wonders remain, to me, unseen.
Friday, April 18, 2025
The Carnelian week at Gujarat - a summary post
Feb 21st-26th 2025
Click on the link to jump to that date.
Carnelian Day One - Ahmedabad and Sarkhej Roza
Carnelian Day 2 - On to Lothal
Carnelian Day 2 evening - Sun Temple at Modhera
Carnelian Day 3 - Rani ki Wow it was
Carnelian Day 4 - Back to the Future feeling at Dholavira
Carnelian Day 5 - A Slice of Kutchi history and culture
Carnelian Day 6 - Ending with a flourish - flamingoes and wild asses with a bonus Owl
And the Ebird trip report is here: https://ebird.org/tripreport/353535
Carnelian Day 6 - Ending with a flourish - flamingoes and wild asses with a bonus Owl
26th February 2025
Our Carnelian road trip explorations were slowly coming to an end. Everyday I saw something completely astonishing and revealing. And this last day was no different. |
We got a morning look at The Fern, Sattva - and I was relieved to see more mud and less concreted spaces. When we returned home, I was curious as to who was behind this group - we stayed in I think 3 of their properties. The promoter Param Kannampilly started The Orchid Ecotel in Mumbai, and has tried to make a mark in sustainable hoteliering, I read. At the moment they have more than 120 hotels under their umbrella! None in Tamil Nadu and that explains why I had not heard of them.
The jeeps picked us up fro the hotel and in less than 10 minutes we were at the sanctuary gate.
This was not my first time at LRK, but it was Sekar's first. The sanctuary has been around since the seveties, when the Wild Ass populations plummeted. Their populations are steady now and I think it is fairly easy to see them.
The much anticipated flamingoes were there in plenty! Both Lesser and Greater. |
Devaroon got some lovely shows like this one - showing the vastness of the landscape too. |
The Northern Shoveler moved in an orderly fashion through the Lesser Flamingoes that were focussed on filter feeding. Photo by Devaroon |
SaiSudha got this lovely video of a flamingo doing the stomp-stomp feed feeed dance. And you can see the Pied Avocets in the background as well.
https://www.instagram.com/reel/DGm20U5SZP2/?igsh=eDFyNmNoZHVtZDE=
Flamingo Ikebana |
Photo by Devaroon - a bunch of Spoonbills were busy too in the clear waters. |
I daydreamed as I stared through the reeds at the clear waters that rippled in the breeze. |
A collective gasp as a flock put on an aerial show. There's something so joyful about birds in flight. |
A trail of pink and honking vocalisations by the flamingoes didnt seem to bother the other birds who ignored them and continued with their morning. |
A flamingo was here. |
Some birds and ducks were far away - Common Pchards with their ferrous heads, a couple of Greylag geese with their distincive pink bills, and 3 Dalmation pelicans in the water! They did not look too different from our Spot-billed Pelicans, but these were much larger. And one white Stork!
The jeep drivers gently moved us along to catch the wild asses.
And then I noticed that Sheila was missing! She had dropped her iphone near the flamingoes, some of the guards seem to have found it, and she raced back to go and get it. She came back with phone looking vastly relieved even if they doubled the reward rate to a 1000 Rs!
The asses moved as a large group in the desert. The Indian Wild Ass (Equus hemionus khur). They have never been domesticated - I found that interesting |
The asses feed on prosopsis and grass, and graze through the day. Prsopsis seems to be a dry season alternative, as they prefer the grasses more. |
The wild ass has family herds, with stallions living on their own, and then when the mare is in heat, there is the usual male rivals battle and an alpha male emerges. |
Grasses like this Alkaliweed form an important part of their diet. It has some slat and also holds water. Some of us tasted it on the suggestion of the guides.
It was time to leave but not before we saw an Owl!!
Do you see the Short-eared Owl Asio flammeus Photo by Devaroon |
Human perception is so amazing - once you "see" it, it stays seen, but until then, you keep asking, where, where? All I see is leaf and brown bark. you whine and fret, and everyone says look here look there, follow the line of that branch, see the rust colour...and then suddenly you realise you have been staring at it all along, just not seeing it. it has happened so many times but always astonishing. And then when you see it, then you become the cool one, needing to help the needy few who haven't!
Complete bird list here: https://ebird.org/checklist/S215471912
And then it was time to leave, and a dusty ride back to the gate and to the resort and check out time. We were in the bus and on our way back to Ahmedabad by 1. By 4 in the evening it was goodbye time
And so ended our remarkable and memorable trip. A trip through time, with wonderful fellow travellers and facilitated so seamlessly by the Carnelian Team.
For us, it was on to Mumbai, catching a virus, possibly from my fellow traveller on the flight and then back to Chennai. The chatter continues on our whatsapp group, and the sharing is interesting enough that no one has left the group!
Wayanad visit - 2019
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