Situated 48 km from Delhi, Sultanpur National Park is a haven for birds, both resident and migratory. During the winter months, it attracts more than 100 varieties of migratory bird species. Although the migratory birds are the prime attraction of the park, the sight of over 150 resident bird species also promise to enthrall bird watchers. The resident population of birds includes Black-necked Stork, Egrets & Herons in large numbers, Indian Roller, Kingfishers such as White-throated, Common and Pied, Grey Hornbill, Red-collared Dove, Red & Yellow-wattled Lapwing, Rose Ringed & Alexandrine Parakeet, Thick-billed Flowerpecker, Indian Courser, Sarus Crane, Spotted Owlet, etc.