These geese are heading north. Birds normally migrate south at the start of winter. So this group must be heading back to their overnight roost.

In the second picture there are two sources of water vapor.

To the west, some newer smaller cooling towers – hardly towers at all really as they are no higher than houses – cool the water from the gas-burning Didcot B power station.

The larger cooling towers are part of the older coal-burning Didcot A power station. It only generates electricity between October and March – a peak demand period when it can run at a profit.

Didcot A will be decommissioned by 2015.