- Birds are the only animals with feathers.
- Birds lack sweat-glands.
- The Sense of Smell is practically absent in Birds.
- The Sarus Crane is the tallest indian bird with a height of around 6 feets.
- The Great Bustard is the heaviest flying bird.
- Ostrich lays the largest egg measuring 7″ by 4.5″, is the largest domesticated bird, has the longest legs relative to body length and is the fastest running bird (without flight) (at around 60 mph).
- Greater Roadrunner is the fastest running bird capable of flight (at around 20 mph).
- The Red-billed Quelea is the world’s most abundant wild bird (entire population is found in sub-Saharan Africa), with an estimated adult breeding population of 1.5 billion pairs.