Collared Dove on Nest

We are having snowy squalls driven by high winds today in Orkney but this dove doesn't seem bothered. Every time I go out to try and get a snowy shot, it stops and the sun comes out. These birds only arrived in the UK in the early 1950s and have spread all over the UK since. The nest was right by a footpath. I didn't approach but shot from the spot from where I noticed the nest on a windowsill.