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Sights. Chokpaksky ornithological station order in Tulkubas
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Sights. Chokpaksky ornithological station

Sights. Chokpaksky ornithological station

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Kazakhstan, Tulkubas
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Description
The Chokpaksky pass - most a bottleneck between the Talas Alatau and Karatau, Ridges Tien Shan having height of 2500 - 4200 meters. Height of this pass is up to 1200 meters above sea level. Here in these gate the huge number of the birds migrating annually from the North on the South and the South on the North also directs. Because Tien Shan is located in the meridional direction, birds fly, bending around these mountains. Respectively in the spring they fly from the West on the East, and in the fall - from the East on the West. This phenomenon was noticed long ago by scientists and from 60th years of last century conduct regular supervision over migrations of birds through the Chokpaksky pass. Here during a season of migrations ornithologists of the center of a koltsevaniye establish traps for catching of birds. These traps carry the name of "Gelgollandsky" called according to the name of the place where for the first time such traps were applied (the island of Helgoland in the North Sea, Germany). These traps have an appearance of big trap nets with an entrance 35 wide and up to 12 meters high. Length of this "trap net" is 50 meters. The trap comes to an end with a reception chamber from which birds get to replaceable cages which change in process of accumulation of birds. Birds are best of all caught at a head wind, they, as a rule, fly below. Means in the spring - it is east wind, in the fall - western. In windless weather the ulovistost of networks is much lower and visit of station is not so interesting. It needs to be considered when planning excursions. At multi-day ornithological rounds the direction of wind is defined in the morning, before planning of day excursion. Except gelgolandsky traps at Chokpaksky station of a koltsevaniye of birds catch in web networks. The small dendrofilny types stopping for rest and feeding in forest belts on the Chokpaksky pass, as a rule, get to them. The Ulovistost of these networks is higher in windless weather.
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Sights. Chokpaksky ornithological station
Sights. Chokpaksky ornithological station
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