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Old World sparrows

Birds
Old World sparrows are a group of small passerine birds forming the family Passeridae. They are also known as true sparrows, a name also used for a particular genus of the family, Passer. Wikipedia
Lifespan: House sparrow: 3 years and Eurasian tree sparrow: 3 years
Scientific name: Passeridae
Clutch size: House sparrow: 4 – 5, Eurasian tree sparrow: 5 – 6, and Chestnut sparrow: 3 – 4
Lower classifications