Scooter startup Bird raises $400 million in 4 months and rockets to $2 billion valuation

Scooter startup Bird has raised $300 million in a round that values the company at $2 billion. The funding round comes just months after the startup raised $100 million. Silicon Valley investors are pouring money into dockless scooters, as they bank on the devices becoming a permanent part of how people get around in cities.