Tweety was born with a rare genetic mutation called leucism, which affects the pigmentation of the bird's feathers, causing them to turn completely yellow. Bonorong Wildlife Sanctuary director ...

Whether Chalamet takes home the Oscar or not, his Tweety Bird-inspired yellow suit has already won the internet’s attention—good or bad, it’s unforgettable.

All Cassandra Tremblett wants is to bring her bird, Tweety, home for Christmas. Tremblett of Paisley, Ont., said her pale yellow cockatiel went missing from his home on Sept. 22. A bird that ...

Tweety, a yellow-tailed black cockatoo, was born with leucism, a rare genetic mutation that affects the pigmentation of the birds' feathers, causing them to turn completely yellow. The rarity ...