The clattering racket of progress proves a surprisingly effective lullaby and, nesting down in my little compartment, I drift towards sleep.

BBC: The wonders of Canada by rail

The nesting platform is about half way down the tower and the falcons regularly take local, wild birds for food.

BBC: Derby Cathedral video proves peregrines hunt by night

As dunes build up absent a storm to knock them down they shift closer to the high-tide line, and nesting space shrinks.

WSJ: Wrecked Beaches Could Aid Plovers