Information About Swiftlet Bird

Birds That Produce Edible Bird Nests

2018-08-16T06:22:00.003-07:00

Bird nest soup has been a delicacy in Chinese cuisine for five hundred years since the Ming Dynasty. It has plenty of nutritional benefits such as it promotes quick recovery from lung infection and makes the skin look bright and radiant.

Due to its scarcity and high demand for it particularly in the mainland China, bird nest is sold at premium prices.

The Swiftlet is the only kind of bird capable of producing an edible bird nest. It lives in limited parts of the world. These areas include the Hainan Island of China, Vietnam, Thailand, Myanmar, Peninsular Malaysia, Sumatra, Java, Borneo Island (consisting of Sarawak, Sabah, Brunei and Kalimantan) and the Philippines.

There are three major species of swiftlets that produce edible nests which are the key ingredient in the soup.

The first species is white nest swiftlet. It has a scientific name called Aerodramus fuciphagus. It is about 12 centimeter long and weighs about 16 grammes. It has brownish grey feather and dark brown eyes. Its call is double click sound which is used for manoeuvring about in the caves. Its bird nest weighs about 4.5 to 8 grammes.

It constructs edible nest from its salivary secretion from a pair of large lobed salivary glands located under the tongue. The male swiftlet builds the nest. 85-97% of the nest is salivary glutinous strands of the swiftlet. It is the most sought after item and its price is the highest among the swiftlet nests. The swiftlet builds the nest three times annually. The female swiftlet lays two eggs each time during the breeding seasons.

The purpose-built swiftlet house farmers prefer to keep white nest swiftlets. They will try to lure them to roost and nest in the swiftlet houses by playing pre-recorded swiftlet sounds.

The second species is black nest swiftlet. It is also known as Aerodramus maximus. It is larger than white nest swiftlet. Its length is about 13 centimeter and weighs about 28 grammes.

It builds dark nest from its salivary secretion mixed with feather and plant materials. Its feets are full of feathers. The feathers are used in the construction of its nest. 5-15% of the nest is the swiftlet's salivary glutinous strands. Most of the bottled or canned nest products are made of this type of swiftlet nest.

The third species is grass nest swiftlet. Its scientific name is Collocalia Esculenta. It has a dark blue body. It is smaller than white nest swiftlet and black nest swiftlet. Its length is about 9 centimeter. It has high pitch sounds.

It mixes grasses with its salivary secretion to build its nest. The nest is brown in color and contains 5-15% swiftlet's salivary glutinous strands. The restaurants prefer to have this type of swiftlet nest for the soup.

It is one of the most common birds in Borneo Island and is visible everywhere in the sky from lowland oil palms to montane forests. It feeds on mosquitoes and other small insects. In town, it stays in small colony in some shady buildings. In the forest, it constructs its nests under the rock overhangs.

This article is posted by Chai Yong of [http://www.banyan-bird-nest.com]

Article Source: http://EzineArticles.com/expert/Chai_Yong/109423

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Avian Architecture: How Birds Design, Engineer, and Build

2013-01-14T09:26:00.000-08:00

Book Description
Publication Date: May 16, 2011

Birds are the most consistently inventive builders, and their nests set the bar for functional design in nature. Avian Architecture describes how birds design, engineer, and build their nests, deconstructing all types of nests found around the world using architectural blueprints and detailed descriptions of the construction processes and engineering techniques birds use. This spectacularly illustrated book features 300 full-color images and more than 35 case studies that profile key species worldwide. Each chapter covers a different type of nest, from tunnel nests and mound nests to floating nests, hanging nests, woven nests, and even multiple-nest avian cities. Other kinds of avian construction--such as bowers and harvest wells--are also featured.

Avian Architecture includes intricate step-by-step sequences, visual spreads on nest-building materials and methods, and insightful commentary by a leading expert.

    Illustrates how birds around the world design, engineer, and build their nests
    Features architectural blueprints, step-by-step sequences, visual spreads on nest-building materials and methods, and expert commentary
    Includes 300 full-color images
    Covers more than 100 bird species worldwide

Editorial Reviews

Review

I live in a nice clapboard house and work in a gleaming steel-and-glass skyscraper, but after reading Avian Architecture I feel cheated. I'll never get to enjoy the comforts of the nest of a long-tailed tit. (Henry Fountain New York Times )

Goodfellow explores nest types and their design and construction. The text is excellent and the book is richly illustrated with drawings, photographs, and a selection of architectural blueprints for many nests. (Wayne Mones Audubon Blog )

[Goodfellow] sharpens the focus to explore nests only from the perspective of their architecture--their form, function, construction materials, how they are made, and by whom. . . . We love finding nests but rarely pay attention to how they are built. Avian Architecture will magnify your sense of wonder. The book is chockablock full of detail presented in a very accessible way. (Wayne Mones Audubon.org )

[Avian Architecture] is a compelling read. I couldn't put it down. Goodfellow organizes nests into general types: scrapes, holes, platforms, cups, woven nests and so on. He describes each nest type in great detail and illustrates the process with detailed artwork and photos. (Scott Shalaway West Virginia Gazette )

This has got to be one of the coolest bird books I've ever come across. . . . Avian Architecture may unravel some of the mystery behind how birds make their nests, but Peter Goodfellow thoroughly reveals a complexity in nest building that makes birds all the more astounding. . . . Trust me, you're [going to] want this! (Robert Mortenson Birding Is Fun )

In a word, this book is 'magnificent'. Its 160 pages are loaded with the kind of photos and artwork that we've come to expect from Princeton University Press--exceptional. . . . This book delivers 100% of what the title promises--the design, engineering, and building of birds' nests. (eBirdseed.com )

Avian Architecture is a beautiful book with lots of pictures and illustrations of the many styles of nests birds build. In addition, there are interesting insights into birds around the world. (A Charm of Finches )

A well-illustrated introduction into the nest building behavior of birds. (Ian Paulsen Birdbooker Report )

The illustrations are a rich combination of fine photographs and necessary graphics that can show structural cutaways and design elements no photo can reproduce. From the simple but elegantly hidden scrape nests to the large, unwieldy platform nests of some of our largest birds, this book gives you the how and where of the avian builder's method. (Harry Fuller A Towheeblog )

A must have book if you have ever wondered how birds are able to build such incredible nests. Peter Goodfellow has created a fascinating read combining "blueprint" drawings, with explanations, of each nest type as well as detailed drawings of the techniques and materials used by some specific species of birds. (Birder's Report )

The drawings and text allow the author to give the reader a firm understanding of how various nests are made. The coverage goes from simple nests to more complex, sometimes communal nests. . . . The book covers so much more: mound incubators that use the heat of composting material, platform nesters, colonial nesters and others. The text is easy to understand and can be shared with children. This book provides a great entry to the wonder of birds. (Herb Wilson Portland Press Herald )

Goodfellow provides blueprints for each nest type, a list of building materials, and case studies. All are illustrated with photographs and superb artwork, and explained in clear, concise text. Bird nests can be as fascinating as the bird itself. Avian Architecture makes that point clear. . . . I read Avian Architecture cover to cover without putting it down. (Jim Williams Minneapolis Star Tribune )

Birds weave and wind, dig and daub, scrape and sculpt some of the most amazing homes in the animal kingdom. Avian Architecture reveals the genius hard-wired into birds' brains. They are, without regard to the variety of their collective techniques, all master builders. . . . It isn't often that we think of a bird book as a real page turner, but Goodfellow's Avian Architecture is just that. (Brad Sylvester Examiner.com )

Packed with loads of information and knowledge on bird nests and the process of nest building. (Tim Schreckengost Words about Birds )

Scarcely a page was turned in Avian Architecture that I did not learn something new and incredible. . . . I've been waiting a long while for a book like Avian Architecture. I was not disappointed. It is nothing short of a revelation to discover not only the variety of structures that birds build, but also (especially) how they are constructed. (Grant McCreary Birder's Library )

A really fascinating panorama of one of the wonders of avian life--excellent! (Bo Beolens FatBirder )

Beautifully illustrated. . . . Avian Architecture is a great book to learn more insight into the world of birds and how they nest. (birdfreak.com )

I always admired and was amazed by the nests, and I had a cursory understanding of their structure, but it took reading Avian Architecture to really bring the engineering to life and deepen my appreciation of the building process. It's a great book to add to your birding library. I love it. Blue prints, photographs and lovely watercolors help you assimilate a lot of information quickly. It won't take long to help you understand another facet of bird life. (and the Peanut blog )

A browsable, amply illustrated overview of avian construction from mere scrapes in the sand to edible structures people prize for soup. (Science News )

This is not a field guide for systematically identifying birds' nests. It's a sit-down-and-be-enchanted-by-the-skills-of-our-feathered-friends kind of book. The British Goodfellow is a longtime birder and former teacher who knows how to convey his deep expertise accessibly to his readers. . . . The book will charm any interested reader and will win birds more devotion with every viewing. Highly recommended. (Library Journal )

Exceptional illustrations and photographs help author Peter Goodfellow describe scrapes in the dirt, tunnels, domes, mounds, cups, and other types of nests birds build. The book's jaw-dropping scenes include a hornbill sealed in a nest hole, a colony of densely packed albatrosses, and the many colorful walkways made by bowerbirds. (Matt Mendenhall BirdWatching Magazine )

Numerous attractive, inviting diagrams, sidebars, paintings, and sketches supplement the photographs. The minimal text is tied to this rich, illustrative material making the book primarily one for browsing . . . (Choice )

Fascinating, beautifully illustrated. (gory McNamee, Britannica.com )

Peter Goodfellow's recent book, Avian Architecture: How Birds Design, Engineer & Build, captures a lifetime of not just observing birds but the unsung structures they create. Bird nests can be simple or elaborate, as small as a hazelnut . . . or enormous, weighing several tons. They can last a few weeks or a century, and can be isolated or one among a half million of similar nests. Divided into 12 chapters based on types of nests and other avian construction, the book revives Goodfellow's 'schoolboy excitement of "bird nesting"' with case studies from around the world accompanied by intricate line drawings and blueprints, as well as hundreds of photos. (Meera Subramanian Discover magazine )

Avian Architecture offers more than mere knowledge. Through the factual exploration of avian nest building, this book not only informs but also imparts a sense of wonder. (Bloomsbury Review )

Avian Architecture is a hardcover book, hefty in the hands, glorious throughout, and will add immeasurably to your enjoyment of Maine's great outdoors, especially if you are a birder. Even if you are not, a walk around the back yard will be enhanced by what you learn in this book. (George Smith Down East Magazine )

[T]his is a book that would be appreciated by a large audience of bird aficionados, in a format that is accessible and really enjoyable. The author's interest is contagious and will leave readers inspired to discover and admire bird nests in the wild. (Sabrina S. Taylor Journal of Field Ornithology )

[F]ew avian titles have left me spellbound and excited to read cover to cover through the night as Avian Architecture. Everything about this book, layout, color photographs, handsome blueprint illustrations, a fascinating subject that deserves this overdue exposure, and succinct text, proves that this book deserves the recent publication awards. . . . Avian Architecture deserves to be placed in the bookcase next to the best of all avian titles. Ornithologists, naturalists, teachers at all levels of education, yes, even the curious public will be thrilled with the contents of this primary reference. (Gene Wilhelm Pennsylvania Birds )

About the Author

Peter Goodfellow is a retired English teacher and lifelong birdwatcher. His books include "Birds as Builders" and "A Naturalist's Guide to the Birds of Britain and Northern Europe".

Ultrasonic Bird Control? Don't Throw Your Money Away!

2012-08-27T06:38:00.001-07:00

Sometimes hardware or lawn & garden companies advertise ultrasonic devices that are supposed to drive birds away with high frequency noises undetectable to humans. Sounds like a good idea, right? Blast out sounds birds can hear but we can't—what's not to like? Unfortunately, the truth is that birds do not actually hear these ultrasonic sounds any better than humans do, and there is no scientific evidence that these devices actually work. The bottom line is that birds cannot hear ultrasonic frequencies and ultrasonic devices don't work.

Humans hear sounds between the frequencies of about 20 to 20,000 acoustical vibrations per second (hertz or Hz). Middle C is about 262 Hz and the highest piano key (C8) is about 4186 Hz. As you get older, you lose the higher frequency sounds; middle-aged people can often hear sounds only up to 12,000-14,000 Hz (12-14kHz). High frequency dog whistles work because dogs can hear sounds up to 40-60 kHz. Bats use sounds up to 100 kHz to help them locate their flying insect prey and avoid obstacles in the night sky.

Birds, on the other hand, usually hear best between 1-5 kHz, with total hearing between .5 and 8 kHz. There is a huge amount of variation between species. Some songbirds—especially those with high pitched songs—can hear up to about 20 kHz. There are some discrepancies in studies of the upper limits of bird hearing, but in the most recent tests, no birds have been shown to hear frequencies above 20 kHz. Even birds like oilbirds and swiftlets that are known to use sound for echolocation in dark caves only use audible sounds between 1 and 15 kHz. For this reason, ultrasonic devices using frequencies between 15-30 kHz are completely ineffective save for a few songbirds.

While birds may not hear higher frequency sounds any better than people do, a few including pigeons and owls may actually hear lower frequency sounds better. In 1979 researchers discovered that some pigeons can hear sounds as low as .05 Hz. That's the kind of low infrasounds created by earthquakes, winds over distant mountains, or waves on distant shorelines. Some researchers have speculated that these birds can use these distant sounds to help them maintain a general sense of direction.

So before you buy an ultrasonic bird scaring device costing several hundred dollars, remember this general rule: most birds hear about as good as you do—even with your middle-age hearing loss!

The Myth and Truth of Red Bird Nest

2012-04-17T08:23:00.001-07:00

Heading deeper within the cave, the nests are yellow in coloration and in the vicinity of the deepest stop golden red colour.

The coloration of genuine yellow and red bird nest is because of to interaction of the nest with the cave wall and absorption of the normal minerals identified in the wall. A red nest with uniform yellow and red shade is almost never identified since only 1 facet of the nest is in make contact with with the cave wall. It could be because of to the swiftlets feed on red algae. In such a situation the color of the nest is grayish pink as an alternative of simply yellow or red.

There is an additional rumor namely the red nest is built by the residence swiftlets. This is entirely untrue as the home swiftlets only feed on insects and not algae. Only cave swiftlets make red nest. No matter if it helps make the nest for the first time or many instances, it produces only an individual kind of bird nest namely white 1. The rumor may well be spread by the unscrupulous businessmen who adulterated coloration into the white nest or make the white nest becomes red 1 by fumigation.

In conclusion, one particular should be watchful in choosing red nest as the normal an individual might bring gains even though the fake a person could bring about damage to one's wellbeing.

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http://www.articlesbase.com/home-and-family-articles/the-myth-and-truth-of-red-bird-nest-4578843.html

Planet Wild - Cave Swiftlets

2011-09-18T21:53:00.000-07:00

This short 3 minute mini doc from the BBC showing the birds responsible for make the nests in Birds Nest Soup! They are made of birds spit.