Any thoughts on the ID of this Skua photographed off canary islands?
https://m.facebook.com/160807948221/photos/a.10151982454403222/10158192702908222/?type=3
Is it just a dark Bonxie?
https://m.facebook.com/160807948221/photos/a.10151982454403222/10158192702908222/?type=3
Is it just a dark Bonxie?