This volume serves as a definitive taxonomic and behavioral record for the avian species found within the Indian subcontinent, specifically covering the order from Frogmouths to Pittas. Salim Ali, a preeminent Indian ornithologist, and S. Dillon Ripley, a distinguished American ornithologist, synthesized decades of field research and specimen analysis to create this comprehensive reference. The work provides a rigorous framework for identifying, classifying, and understanding the life histories of birds across India, Pakistan, Bangladesh, Nepal, Bhutan, and Sri Lanka.

Experts and ornithologists recognize this series as the foundational reference work for the study of birds in South Asia. Readers frequently note the academic density and precision of the text, which remains a standard resource for researchers and serious naturalists alike.