The sign — one of two birds that formerly adorned Twitter’s office — is up for auction. The massive logo that marked the company’s headquarters on San Francisco's Market Street is ...

SAN FRANCISCO (KGO) -- The big blue bird logo from the Twitter San Francisco headquarters is up for auction. This logo is about 12 feet tall, nine feet wide, and weighs in at roughly 560 pounds.

The official Twitter “bird logo” sign that was once displayed outside the social media company’s former San Francisco Market Street headquarters is up for auction.