My Science School

Birdwatching is an interesting, exciting as well as a relaxing hobby for children. But do you know the basics of birdwatching? Read on to find out what we need to do when on a birding trail in this first of a five-part series.

Oodles of patience, hours of silent observation and no sudden movements - these are the prerequisites of birdwatching.

So you've bought your first pair of binoculars (if that's a mouthful, let's stick to binns or binocs!). Congratulations! I hope you have worn your dullest, darkest clothes, because birds have good eyesight and can spot bright yellows, reds and blues from a mile away. That's a green signal for them to scoot!

Locate the bird

First locate the bird with the naked eye when it flies and settles on a branch, and then focus your binocs on the spot. Birds usually sit high up in the canopy or flit amidst dense foliage, so it might be a while before you see one clearly.

Pointing your finger and letting out a screech of joy when you spot it to let others know, are strict no-nos. Birds think you are about to shoot at them if you lift your hand up suddenly. Their hearing is sharp too, which is why birdwatching is best done in very small groups.

You might think that following the sound of a calling bird would give away its hiding place, but be warned! Most birds are master ventriloquists so while you focus on a spot in front of you, the bird might be trilling away happily behind your back!

Peak hours for avian traffic

The time between sunrise and 10 a.m. are the peak hours for avian traffic. You will hear the maximum number of bird calls then and see them out in the open as they search busily for insects, berries and flower nectar.

The activity tapers off gradually by noon. In the stillness of the afternoon, birds sit quietly in the shade of the leaves and there is nary a movement to tell you that a little fella is perched on the twig near your nose!

By four o'clock or thereabouts, there is a stirring, a rustling and a hunting for a quick evening snack. And then there is a great flying to and fro as the birds return to their roosting spots for the night. That is a good time to watch them, too, but the fading light often plays spoilsport and all you can see sometimes are silhouettes.

However, despite tired arms, aching neck and sore eyes, it's all been worth it, because you saw your very first Asian paradise flycatcher in flight, weaving in and out among the leaves like a ghost, his long white tail gleaming in the dim light...

Birding app

Novice birdwatchers need not worry. The Merlin Bird Id app is a truly amazing, easy-to-use aid in identifying a bird by its appearance, calls, songs and the area and month one sees it!

Developed by Cornell Lab of Ornithology, New York, the free-to-download app has different 'bird packs' which list all the likely birds that can be seen in a particular country or region of the world, including oceans! There are photos, too.

Useful tips

• Most sanctuaries and national parks conduct birdwatching trails. One of the best times to watch birds is when the trees have shed their leaves.
• Wear dull-coloured clothes that merge with the surroundings. Avoid any jerky or noisy movements that would disturb a bird.
• Carry a pair of binoculars with you. A spotting scope would be ideal as you get an upright image unlike the inverted image you get in a telescope
• Take an illustrated field guide (or get hold of Dr. Salim Ali's "Book of Indian Birds") to help you to identify unfamiliar birds.
• Ideally, familiarise yourself with the birds in the region before starting the trail. For this, read about their physical features, calls, habitat and the time of the day when you are most likely to see them.

Picture Credit : Google 

Proposed on the lines of Project Tiger, the country's highest court seeks the government's view on the idea. What prompted this? Here's the story and background in five simplified points.

1. THE PROPOSAL: Coming to the rescue of the critically endangered Great Indian Bustard (GIB), the Supreme Court has mooted the idea of launching 'Project GIB' on the lines of 'Project Tiger. A bench headed by Chief Justice D.Y. Chandrachud, and comprising justices A.S. Bopanna and V. Ramasubramanian, also sought reports from the chief secretaries of Rajasthan and Gujarat in six weeks on the installation of bird diverters in priority areas and assess the total length of transmission lines in the two States where undergrounding of electric wires have to be done to ensure the birds do not die of electrocution.
2. COMMITTEE FORMED: The Supreme Court had earlier set up a three-member committee to assess the feasibility of laying high-voltage underground power cables. It had also directed the Gujarat and Rajasthan governments to convert overhead electric cables into underground power cables, wherever feasible, and install bird diverters in priority areas where the birds live. It has now directed the committee to submit an updated status report on the steps to safeguard the birds.
3. ENDANGERED SPECIES: The great Indian bustard, considered India's most critically endangered bird species, is especially found in Rajasthan and Gujarat, and as per the 2021 report of the International Union for Conservation of Nature (IUCN), they are on the verge of extinction with less than 249 of them alive. Endemic to India, these birds were once seen across several States in the country. Due to hunting, habitat loss, and accidents caused by windmills and overhead power lines, their numbers dwindled over the last few decades.
4. RECENT DEATHS: Being hit by overhead power lines is one of the major reasons for the death of these birds today, which is why the focus is on undergrounding such lines. While the work for undergrounding power lines has started in Gujarat, that does not seem to be the situation in Rajasthan, according to reports. Bird diverters too have not been installed in priority areas despite the Supreme Court's direction. This would explain the deaths of seven birds so far this year, which is a matter of continuing concern.
5. PROJECT TIGER: The Central government had launched 'Project Tiger on April 1, 1973 to promote the conservation of the big cat whose population had dipped alarmingly. The number of tigers in 1973 was less than 300, and according to the All India Tiger Estimation Report, that number rose to 2,967 in 2018. Project Tiger has been viewed by the government as one of the most successful conservation programmes for a single species in the world. And so, it is hoped that a similar project for this critically endangered bird species would save it from extinction.

Picture Credit : Google 

The Bee Hummingbird is the smallest bird on the planet. The males often grow only up to 55 millimetres, weighing about 1.95 grams, whereas the females grow up to 61 millimetres from beak to tail, weighing about 2.6 grams. Bee Hummingbirds are an endemic species that are found in all parts of the main island of Cuba and the many islets and islands that make up the Cuban archipelago.

Visiting more than 1500 flowers in a day, these tiny birds feed on nectar, and sometimes on insects and spiders. In this process, they pick up and transfer pollen to their beak and head. An interesting aspect about them is that they feed on the flowers without landing on them-instead, they hover in the air while feeding and as a result of this constant flapping of wings, they need to eat every few minutes. Up to 15 per cent of their time is spent eating.

The downside of being the world's smallest bird is that they are particularly vulnerable to being attacked by other species that consider them similar to insects due to their size. Because of this, they have to watch out for larger birds, mongooses, bees, wasps, frogs, fish, and even spiders. Just like most other species, human activity has also led to a decrease in their number. They are not yet considered an endangered species, but are classified as "near threatened".

Picture Credit : Google 

Both the American woodcock and Eurasian woodcock have been recorded travelling at 8 km/h speed in level flight. Their brilliant camouflage techniques have earned them the title 'timberdoodles.' American woodcocks blend into woodland environments to the point of becoming invisible as they camouflage so perfectly with the leaf litter on the forest floor.

Their bodies are stocky and plump, and they have short wings. Their body structure helps them to navigate the woodland and meadows, which are their natural habitats. Their physical design implies that fast-paced and graceful flight is impossible for them.

However, American wood-cocks increase their pace during migration and speeds between 26 and 45 km/h have been recorded. Even during this time, they usually fly at relatively low altitudes.

Picture Credit : Google

The peregrine falcon is the fastest bird in the world. Its diving speed during flight can reach above 300 km per hour, making it the world's fastest animal. The bird has breeding populations on every continent except Antarctica and some oceanic islands, which gives it the credit of being the most widely distributed species of bird of prey.

For a long time, captive peregrine falcons have been used in the sport of falconry. After World War II, the bird suffered a huge decline in population across the globe. In most regions, including North America, the major reason for this loss of population is traced to the pesticide DDT, which the birds accumulated from their prey. The chemical concentrated in the bird's tissues, which affected the deposition of calcium in the eggshells, making them abnormally thin and easily breakable.

In the British Isles, another pesticide named dieldrin caused direct death of peregrine falcons and thus contributed to their decline. Following the banning or minimising the use of organochlorine pesticides, their populations have increased in many regions.

The peregrine has been listed as a species of least concern by the International Union for Conservation of Nature (IUCN) since 2015.

Picture Credit : Google 

The wandering albatross that glides above the sea for hours without flapping its wings has the longest wingspan of any living bird. Its wingspan ranges from 2.51 to 3.5 metres. These birds use their large wings to ride the sea winds and spend most of their lives out in the open sea. They are so efficient at flying that it takes them more energy to sit on a nest than fly!

Albatrosses are a pelagic species, which means they inhabit the open seas. They are found in all oceans except the North Atlantic. They breed on remote islands on the north of the Antarctic Circle, and travel thousands of kilometres from their breeding ground when it is not breeding season. They sometimes cross the equator as well. These birds can fly up to 40 kilometres per hour.

Albatrosses feed during the night, alone or in small groups, making shallow dives while hunting. They mostly consume small fish and crustaceans. They also follow fishing boats and ships to feed on discards and garbage. Albatrosses often overdo their hunting and end up eating so much that they are unable to fly and have to float on the water!

These birds come together in large colonies on remote islands and build their nests from mud and grass. An egg is produced by the female, which gets incubated by the pair in turns. The egg hatches after around 11 weeks, and once the chick is born, the parents take turns to hunt, while the other stays in the nest to take care of the chick. Albatrosses don't have many predators owing to their large size, but they are listed as vulnerable due to increasing pollution, which makes it difficult for them to find food.

Picture Credit : Google