Article Detail Which is smallest and largest bird ? Answer: Smallest Bird is Humming Bird and Largest bird is Ostrich Similar Questions : 1. Which is the longest road in India ? Answer: Grand Trunk Road (2500 Km) 2. Which is the Highest mountain peak ? Answer: Mount Everest (8,850 m) 3. Which is Largest Dome in World ? Answer: St. Peter's Basilica (Rome) 4. Which is Longest road tunnel in the World ? Answer: Lærdal Tunnel (Norway - 24.51 kilometre) 5. Which is smallest state by area of India ? Answer: Goa 6. Which is largest Dam in World ? Answer: Three Gorges (China) 7. Which is the largest Zoo in India ? Answer: Zoological Gardens, Alipur, Kolkata Read more from - Longest and Largest