Wagtails are easy to spot when they are wagging their tails, but don't confuse this Grey Wagtail with the Pied Wagtail. Pied Wagtails are black and white (and a few shades of grey) but the Grey Wagtail (confusingly) has a vivid yellow underside. There is also a Yellow Wagtail to add to the confusion, but they really are all over yellow.

This one is a juvenile, and its yellow is still quite pale. The Grey Wagtail is usually found rummaging around near water looking for food. They don't stay still for too long, and frequently fly from one side to the other. Wallington has several streams running through the woods, and this is an ideal place to see them, plus of course the River Walk.

The one below is either a female or a juvenile. Note the chin is white - adult males have black chin/throat as in the first photo. There were two of these hunting on the house roof, no doubt looking for insects that the sun had warmed up on a cold December day.