As the audio begins, the gentle, persistent rustling of the wind can be heard, echoing the vast openness of El-Prat. This place, located near the Llobregat river, carries an airy ambiance that's both calming and refreshing to the senses. Gradually, the distinctive calls of birds begin to layer into the soundscape. These are not just any birds, but the gulls, known locally as 'gavins' or 'gavines'. Their squawks and chirps, each varying in pitch and rhythm, weave a rich tapestry of sound that's both wild and harmonious. The seagulls' calls rise and fall, sometimes overlapping, sometimes answering each other, creating an organic symphony that captures the spirit of this region. Their sounds hint at their activities - some may be wheeling in the sky, others might be squabbling over a tasty morsel, and a few may be standing sentinel over their territory. The