I checked your MyPage, but didn't find your location. The only lapwing that frequents the US is the Northern Lapwing, but the bird in your photo more closely resembles a Southern Lapwing, from S. America

The only thing I was able to make out was the kookaburra...

I just remembered that at Thanksgiving (central Indiana), I looked out and saw a white bird with with just a little bit of color on it's wings (brown). It was always with a lot of sparrows. I'm thinking it was "just" a mutation. I wonder if that's what you saw? Did it have any other markings on it? Was it completely white except for the wings? Yeah, a snow bunting is a good possibility.

It looks like a faucaria to me, but the cactus and succulent forum is usually where we refer these types of things for more specific ID's.