Strange Reflection of a Cross Spotted on Easter

In a change from my usual topics, I thought this was a cool find.
Reading my local paper I work for today, I noticed a strange article about a cross relection appearing on the side of a house, which progressed to various areas of the residence, including a shed. Apparently no source could be found that resulted in the relection. In my opinion this is much cooler then Jesus toast!
Image and video below.

Reflected Cross