The English pronunciation for "三只鸟" is "sān zhī niǎo".
In Mandarin Chinese, "三只鸟" refers to three birds. "三" means three, "只" means measure word for animals, and "鸟" means bird. When pronounced together, it sounds like "sān zhī niǎo".
To break it down further, "sān" is pronounced with a high-level tone. "zhī" is pronounced with a rising tone. And "niǎo" is pronounced with a falling-rising tone.
It's important to note that the pronunciation of Mandarin Chinese words is different from English. Therefore, it's helpful to practice and listen to native speakers to accurately learn the correct pronunciation.