Black-winged Kite: ELANUS CAERULEUS VOCIFERUS (Latham); Falconiformes, Accipitridae. Chupir-Char - Kasthasali, Purbasthali (23º26ʹ45ʺ N 88º19ʹ45ʺ E), Burdwan, W. Bengal, India Vast majority of the species in the Order Falconiformes (Kites, Hawks, Eagles, Ospreys etc.) etc. are Migratory and visit during winter months. Chupir-Char is a Riverain-Lagoon and is a heavenly abode of water-birds. It is an oxbow-lake and is frequented by more than 75 bird species of which more than 45 are residents.