The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

Only BIRD I ever loved.
The Big Bang Theory Season 4, Episode 19

How about after this
we go see the exotic BIRD show?
The Big Bang Theory Season 10, Episode 21

Uh, a BIRD in the hand
is worth two in the bush?
The Big Bang Theory Season 4, Episode 18

He's like a baby BIRD.
The Big Bang Theory Season 5, Episode 5

That's true. But, on the other hand,
you are wearing a BIRD sweater.
The Big Bang Theory Season 2, Episode 10