Due to drought conditions, the nesting of Siberian flamingos is being affected by a decline in their migration numbers. (Express Photo By Pavan Khengre) Every year from November to April, the shallow backwaters of the Ujani dam, near the small village of Kumbhargaon in Bhigwan, about 100 km from Pune, turn a shade of pink. Thousands of greater flamingos descend on the wetlands, drawing wildlife photographers, tourists, and nature enthusiasts from across the country. Boatmen, hoteliers, homestay owners, and local guides count on this annual spectacle for their livelihood. But this year, the flamingos never quite arrived. “We only sighted around 200 to 250 greater flamingos this season, which runs from November to April. Even those that didn’t settle, they came in small flocks (around 30) and flew back within two or three days,” says Nitin Dole, a Kumbhargaon resident who runs a bird guide and safari service. “Tourism has been severely affected.…