A Puzzlement

While working in the yard this weekend I cam upon this. A reflection from one of the house windows. I don't know why it is shaped like a kite.

And more interestingly to me, I don't know why it is pink.

You see, from every other angle it is white.

Moving around the reflection nor changing the height of the viewing angle had any effect. If it was white it stayed white. If it was pink it stayed pink. I would have expected it to change colors, through the visible spectrum. But it did not. A puzzlement for sure.