Every day I am reminded by local wildlife why it's important not to remove every single "weed" from the patio and garden.
I took these photos of a Bewick's wren through a glass sliding door, while it inspected a dandelion plant for insects.
The wren spent a few minutes with the plant, so I suspect it did find some insects for a snack.
A messy patio or garden will provide insects necessary for a bird's diet, especially in the winter.
Bewick wrens will also occasionally eat fruit, berries, and plant matter in the winter.