Birlya

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Birlya
Etymology	Tatar or Finno-Ugric
Native name	Бирля (Russian)
Location
Country	Russia
Region	Republic of Tatarstan
Physical characteristics
Source
• coordinates	55°19′13″N 47°57′21″E / 55.3202°N 47.9557°E / 55.3202; 47.9557
Mouth	Sviyaga
• coordinates	55°31′06″N 48°26′58″E / 55.5182°N 48.4494°E / 55.5182; 48.4494
Length	48 km (30 mi)
Basin size	385 km2 (149 sq mi)
Basin features
Progression	Sviyaga→ Volga→ Caspian Sea

The Birlya (Russian: Бирля; Tatar: Бәрле), a tributary of the Sviyaga, is a river in the Republic of Tatarstan in Russia. The name has its origin from the Tatar language words bure and ile which mean "the river on the place of wolves" or Finno-Ugric languages word hop. There is information that Cheremisa people (Mari people) used to raise hop.