This pratincole was seen last week for apr. 15 seconds in south-eastern Romania (Techirghiol Lake) by me and Sebastian Bugariu. My colleague managed to take this 2 photos but unfortunately in none the underwing is visible. Considering the apparent lack of a broad whitish trailing edge on secondaries we are thinking that the bird is a Black-winged Pratincole, juvenile.
What do you think about the identity of this pratincole?
All the best,