Actually, steps rise on both the east and west sides of the overpass that carries the Amtrak line over the Old Philadelphia ...

But when the crew turned up, they could not get the train out of the sidings without disturbing the birds’ nest. Gulls are a protected species, and all alternative tracks were blocked ...

A wildlife documentarian shared his surprise at finding a nesting native bird had laid its eggs merely ... curlew and it's nest near a set of train tracks in Cairns earlier this week.