The Pied Wagtail is the most common species in this group, and they can be seen all year round throughout the Gainsborough area.
One of the best places to see Pied Wagtails is Marshalls Yard, where sometimes several can be seen flitting about, dodging cars and shoppers. In winter I have seen large numbers roosting on the rooftops there.
Pied Wagtails are a common sight on the Levellings, and there are often several there on any day of the year.
Pied Wagtail (picture from Wikipedia)
The White Wagtail is the paler continental subspecies of the Pied Wagtail, and they come to Britain in varying numbers in winter.
I have sometimes seen White Wagtails around Gainsborough and Morton. I once saw one in Marshalls Yard.
There was a mixed flock of Pieds and Whites on Field Lane beyond Morton on December 1st 2016.
White Wagtail (picture from Wikipedia)
Grey Wagtails can sometimes occur in the area in winter. One spent the winter of 2016-2017 around the Mercer Street entrance of Mercer Wood. Another spent the winter of 2017-2018 at Beckingham Marsh.
Grey Wagtail (picture from Wikipedia)
Yellow Wagtails are summer visitors, and the best places to see them in the Gainsborough area is along the riverside away from the town, along Field Lane between Morton and Walkerith, and especially at Beckingham Marsh.
At Beckingham Marsh, there were a dozen or more around the hide during August and early September 2017.
Yellow Wagtail (picture from Wikipedia)
The best place to see Meadow Pipits in the Gainsborough area is Beckingham Marsh. If you visit the hide there in the spring, you can’t fail to hear them singing or see their display flight. They can be seen there all year round.
Away from Beckingham Marsh, I have seen the odd Meadow Pipit on the riverside away from the town, but not very often.
Meadow Pipit (picture from Wikipedia)