The days get longer, the frost leaves the soil, and the earthworms, lubricus, moves as gardeners, preparing for growth. Suddenly, one mornng, the lawn is filled with different kinds of thrushes that have landed after long flights. Song Trush, turdus philomelos, Field Fare, turdus pilaris, Mistle Trush, turdus viscivorus. The air is filled with more songs, in different pitch and timbre, all with their place in the mighty chorus of spring.