Identifying critical migratory bottlenecks and high‐use areas for an endangered migratory soaring bird across three continents oleh Evan R. Buechley, Steffen Oppel, William S. Beatty, Stoyan C. Nikolov, Vladimir Dobrev, Volen Arkumarev, Victoria Saravia, Clementine Bougain, Anastasios Bounas, Elzbieta Kret, Theodora Skartsi, Lale Aktay, Karen Aghababyan, Ethan Frehner, Çağan H. Şekercioğlu