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Илья Колмановский, "Птицы: самые легкие и самые тяжелые"
Ilya Kolmanovsky
Birds: the lightest and the heaviest
From the book “Why don’t birds fall”
Adaptation
Even if we had gigantic light wings, we would not be able to fly. Because we are very heavy.
A goose (from the tip of the beak to the tip of the tail) and a six-year-old boy are the same height. But one boy weighs the equivalent of five geese!
A swan is about the same length as an adult man, but is six times lighter.
The lightest bird in the world - the humming bird - weighs as little as a dime.
The heaviest bird – the ostrich – weighs one hundred pounds, which is about as much as a very big man.
The ostrich cannot fly.
The heaviest flying bird is the great bustard. The adult male weighs twenty kilograms.
Previously, the heaviest flying bird was the Argentavis magnificens. It weighed the equivalent of half the ostrich. Its wingspan was more than the height of a giraffe. Sadly, the Argentavis magnificens became extinct.
Birds: the lightest and the heaviest
From the book “Why don’t birds fall”
Adaptation
Even if we had gigantic light wings, we would not be able to fly. Because we are very heavy.
A goose (from the tip of the beak to the tip of the tail) and a six-year-old boy are the same height. But one boy weighs the equivalent of five geese!
A swan is about the same length as an adult man, but is six times lighter.
The lightest bird in the world - the humming bird - weighs as little as a dime.
The heaviest bird – the ostrich – weighs one hundred pounds, which is about as much as a very big man.
The ostrich cannot fly.
The heaviest flying bird is the great bustard. The adult male weighs twenty kilograms.
Previously, the heaviest flying bird was the Argentavis magnificens. It weighed the equivalent of half the ostrich. Its wingspan was more than the height of a giraffe. Sadly, the Argentavis magnificens became extinct.
