This is a common native shrub, often found growing in damp areas such as wetland edges, along ditches, etc. It is insignificant for most of the year, and even its flowers are tiny and unnoticed. But in winter when the leaves fall, there is this amazing blaze of colour from the abundant red berries. In this particular location, along an old abandoned rail track, the winter holly was everywhere. I've seen waxwings, both cedar and bohemian, feed on these berries, and I am sure other birds do too, though the fact it is left on the shrubs for a good part of the winter indicates it is not a preferred food, but one eaten only when nothing else is around.