Anyone who has ever driven outside the city in winter has noticed the same scene: huge flocks of birds—from partridges to thousands of small passerines—gather along the roadsides. They rummage through the gravel, take off right in front of the car's hood, and settle again at the edge of the asphalt.
There's a common misconception among drivers and passengers: "Birds fly to the roads to peck at small stones (gastroliths), which their stomachs need to digest their food." They do need stones, but birds would never risk their lives and gather in huge flocks along busy highways for a few grains.
The true reason lies much deeper. The Aleboo team will help you unravel this winter ecological mystery.
In previous articles, we described how the biting winter wind and drifting snow knock the seeds out of steppe grasses, and these grains roll at breakneck speed across the mirror-like crust, as if on a perfect icy track. Seeds can travel tens of kilometers before encountering an obstacle.
And that obstacle is a road.
The asphalt surface is usually elevated above the steppe, and the shoulders are covered with gravel and small crushed stone.
When grain seeds flying across the ice hit a road embankment, their speed decreases.
The seeds become stuck in natural traps—cracks between roadside stones, in depressions, and behind natural obstacles.
As a result, huge "food depots" of high-calorie food, invisible to humans, form along ordinary highways.
Bird strategy.
For birds, winter is a fierce struggle for survival. The main goal is to find the maximum amount of food while expending the minimum amount of energy. If you fly across the snow-covered, endless steppe and try to dig out the sparse blades of grass from under the snowdrifts, birds will quickly freeze and may die of exhaustion. Many wintering birds quickly realized: why search through acres of empty steppe when the wind has already collected all the tastiest seeds in one place—by the road?
Birds flock to the roadsides as if to a free steppe supermarket. They dig through the pebbles not for gravel, but carefully select the high-calorie grains of steppe grasses, carefully delivered to them by the wind.
A reminder for drivers from Aleboo.
Understanding this connection, we humans must be sensitive guests in the winter steppe:
If you see a flock of birds on the side of the road, slow down in advance. In the cold, birds become slightly slower in winter; it is difficult for them to take off quickly, wasting precious energy. Accept nature as a single organism: dry grass in the steppe, a winter snowstorm, and a bird by the roadside—these are links in the same great chain of life in our region.
Stay with us and you'll find out: why do herds of horses and cows persistently wander onto highways?
