Description:
Трясогузки — перелётные птицы. Большинство трясогузок держится возле воды отдельными семьями или небольшими стайками; гнездятся трясогузки на земле или в дуплах. В отличие от большинства мелких птиц по земле передвигается не прыжками, а бегом. Подобно другим представителям семейства Motacillidae (Трясогузковые), трясогузки питаются исключительно насекомыми, в том числе и стрекозами, которых ловят на лету. Охотясь за насекомыми, трясогузки быстро бегают по земле назад и вперёд и во время остановок покачивают вверх и вниз своим удлинённым хвостом (трясут гузкой). Последняя особенность объясняет название трясогузка.Наиболее обыкновенный вид в Средней и Северной России, охотно держащийся вблизи жилья человека, — белая трясогузка (Motacilla alba) — сверху серого цвета, снизу белая; голова сверху (кроме белого лба), горло и средние перья хвоста — чёрные. Гнездится 2 раза в лето в щелях стен, на стропилах под мостами, в углублениях почвы, в дуплах, под корнями деревьев и кустов . Wagtail - migratory birds . Most Wagtails keeps near water by individual families or in small groups ; wagtail nest on the ground or in hollows . Unlike most of the small birds on the ground moves not jumping and running. Like other members of the family Motacillidae ( Tryasoguzkovye ) , wagtails feed exclusively on insects, including dragonflies , which are caught on the fly. Hunting for insects , wagtails run fast on the ground back and forth and during stops shake up and down their elongated tail ( tail shaking ) . The latter feature explains the name tryasoguzka.Naibolee ordinary type in Central and Northern Russia , willing to stay close to human habitation - White Wagtail (Motacilla alba) - gray top , white bottom , head first ( except for white forehead ) , throat and middle tail feathers - black . Nests 2 times a summer in the crevices of walls, rafters under bridges , in the recesses of the soil, in the hollows , under the roots of trees and shrubs
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