Sparrows (Passeridae) can be found almost at every corner of the globe. And Thus with this challenge, it should be easy to find more than one species right in your own back yard.
Now for a few fun facts:Sparrow is a very small bird. It can reach 4 to 8 inches in length and 0.8 to 1.4 ounces in weight.Sparrow has a stout body, covered with brown, black and white feathers. Its wings are rounded.Males and females can be distinguished by the feather coloration: males have reddish backs and black bib, while females have brown backs with stripes.Sparrows are very social and they live in colonies called flocks.Sparrows are carnivores (meat-eaters) by nature, but they have changed their eating habits when they learned to live close to people. Sparrows primarily eat moths and other small insects, but they can also eat seed, berries, and fruit.One of the reasons why sparrows adapted to the life in human settlements is a constant supply of food. Sparrows easily learned to eat “served food” when people started to build bird feeders.Sparrows usually fly at the speed of 24 miles per hour. When needed (in the case of danger), they can accelerate to the speed of 31 miles per hour.Although sparrows do not belong to the group of water birds, they can swim very fast to escape from the predators.Main predators of sparrows are dogs, cats, foxes, and snakes. Young and inexperienced birds are the main target and easy meal for these carnivores.Sparrows are not territorial animals, but they will aggressively protect their nest from other sparrows.Sparrows usually build a nest under the roofs, under bridges, and in tree hollows.Male is responsible for the building of the nest. During construction, the male will try to attract a female. She can help in the further building if she is interested in mating.Sparrows are allegedly monogamous. Recent genetic analysis showed that only small percent of eggs contains DNA of both parents (in other words: both male and female are prone to infidelity).