Rare White Stork spotted at Okhla Bird Sanctuary after 20 years, exciting Delhi-NCR birders and underscoring Yamuna floodplains’ value for migrants. A rare White Stork has returned to Delhi’s Okhla Bird Sanctuary after about 20 years, highlighting the value of Yamuna wetlands for migrants. Last spotted in NCR in March 2019 near Jewar, the species only has four records in the region in nearly three decades, birders.