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Monthly archive for February, 2023
Baikal Zoological journal, volume 1 (33)
The next issue of Baikal Zoological journal, volume 1(33) for February 2023, has been published. The issue opens with the heading “Bird of the Year”. - it contains seven articles about the bird of the previous year 2022, the House Sparrow.
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The last moment of the Vulture family idyll
A large bird of prey (vulture, eagle) that is disturbed on the nest during incubation always soars to a high altitude and circles the sky for a long time before returning to the nest. This enforced absence may take 20-40 minutes or even more. At minus (say 10 degrees) temperatures, the embryo in the egg can die without heating in about 15 minutes.
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