Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Chinese cranes got fledgings at the Moscow Zoo

04.09.2006
This summer, fledglings of the Chinese black-necked crane hatched at the Moscow Zoo. The event is far from ordinary as the black-necked crane is a very rare bird. It can be found only in China, the total quantity of the population making as little as about one and a half thousands.

Surprisingly as it may seem, this crane is the only one in the world that lives in the mountains! Its habitat is valleys of mountain rivers and lakes. Besides China, the black-necked crane is kept only in one Zoo of Europe – in Walsrode (Germany). This species was for the first time described by Przhevalsky in 1876. It is now registered in the strictest category of the International Red Book.

“We received a couple of cranes in exchange from China in 2000, says Olga Rozdina, leading ornithologist of the Moscow Zoo. The birds were in a rather poor state: feathering was dishevelled, the beak flaked, the toes were crooked. We treated them by probiotics, immunostimulants and vitamins. The birds recovered, and in 2004 they made the first laying of two eggs. At 9 a.m. we heard a typical sound with the help of which adult birds communicate with fledglings. However, when we came up to the nest, we saw a fledgling in a thin undershell capsule. In spite of the fact that the little fledgling was placed into the incubator, it died soon from overcooling and inflammation of the yolk sac.” In a year, the cranes laid two eggs again but the attempt failed again.

“This year we decided that only artificial incubation should be used, continues Olga Rozdina. Therefore, when the birds laid eggs again, we took them away on the 14th day and placed in the incubator. Two fledglings hatched on the 35th day. One of them, unfortunately, lived only for three days. The second one is two months old now.”

... more about:
»Moscow »black-necked »fledgling

The cranes, when deprived of eggs, usually make the second laying. So did the couple of black-necked cranes. In the incubator, two fledglings successfully hatched from the second laying, one of them perished on the 8th day. The second fledgling is already a month old.

Olga opens the outdoor aviary, where a two-month old baby-crane walks slightly rocking on thin legs. It seems rather tall already, its head and neck are still covered by fledgling’s ginger down, but the body is already covered by grey feather. The Zoo staff airs the fledging every day to strengthen its muscles. Its younger brother is kept in another aviary. It is still very small and all covered by ginger down. Unfortunately, the fledglings can not be kept together: the elder one makes use of being stronger and offends the little one.

Here are the parents. A couple of big powerful birds - black-necked cranes are not similar by habitus to graceful Japanese cranes (Grus japonensis) or thin hooded cranes (Grus monacha). They are light grey, the neck being black as it should be judging by the name, and there is a little red cap on the head. “They will now give me a piece of their mind”, says Olga. Indeed: the birds simultaneously cast the heads up and cry in shrill voices in unison.

Next year ornithologists will give them a chance to become real parents and will try to put eggs under them prior to hatching of fledglings.

Nadezda Markina | alfa
Further information:
http://www.informnauka.ru

Further reports about: Moscow black-necked fledgling

More articles from Life Sciences:

nachricht One step closer to reality
20.04.2018 | Max-Planck-Institut für Entwicklungsbiologie

nachricht The dark side of cichlid fish: from cannibal to caregiver
20.04.2018 | Veterinärmedizinische Universität Wien

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Magnetic nano-imaging on a table top

20.04.2018 | Physics and Astronomy

Start of work for the world's largest electric truck

20.04.2018 | Interdisciplinary Research

Atoms may hum a tune from grand cosmic symphony

20.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>