Seagulls by the Liffey in Dublin

Sometimes, when we walked trough one of the bridges to cross the Liffey, it was very interesting to see the seagulls. They were flying, but they were not moving, either the wind was so strong that they struggle to move, or they were so tired that they were resting for some seconds, I never knew. In this photo of the Liffey here, we have some blurry seagulls.