We were visiting Barman pass some years back and this raven was squawking like crazy. I took a couple of short videos of him then a bunch of snapshots when all of a sudden two ravens shot out of the tree and flew right down the middle of the road to the fork where the road becomes a dirt road. All the pictures show two white ravens except the last shot when they veered off to the left and were half white. This was odd to say the least. It was overcast but quite bright and the clouds had that chemtrail glow of too much silver particles in the clouds. That must have been enough illumination to bring out the full reflectivity of the raven feathers making them look white to the camera. That`s the best I could come up with that one. They closed the train down at Barman Pass years ago because of weird stuff. I wonder if early photographers ever had pictures like this? That might have tripped they`re trigger.