In the recent Sandgrouse issue by the Ornithological Society of the Middle East you will find a detailed describtion of Azerbaijan’s first Black-winged Kite observation.
Check out:
Resulzade, H.S. (2020) Black-winged Kite Elanus caeruleus, a new species for Azerbaijan and the Nakhchivan Autonomous Republic. Sandgrouse 42(2): 302–304.
https://birdingazerbaijan.org/2020/02/10/azerbaijans-first-record-of-black-shouldered-kite/
Birding Azerbaijan 