Description : Which of the following is the smallest bird? (1) Pigeon (2) Parrot (3) Humming bird (4) House sparrow
Last Answer : (3) Humming bird Explanation: Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. ... of the humming sound created by their beating wings, which sometimes sound like bees or other insects.