Imagine standing in a place where a gentle, cold breeze touches the soul, a grassy smell hits you with nostalgia, the silence of a fog-covered lake whispers louder than words, and the melodic chorus of birds fills the air. This is the experience awaiting you at Jahangirnagar University, the campus that has once again come alive with the chirping of migratory birds as the winter season approaches.

Why have some birds opted for a taxing life of constant migration -- seeking out temperate climes to feed as winter arrives, only to return months later to breed?