Love how you caught the sunlight on the wings, it brings out a lot of detail. He has such an impressive wingspan and you captured that very well here. Great shot Yves!
You are right on that Heather. Backlight produce special detailing on almost everything, specialy feathers due to their transparency.
Thanks Debra. This is the purpose of presenting that photo. Due to the shadow under gliding birds it can not be a beautyful colored shot. But it sure is a impressive one.