Birds fly south for warmer weather.

Meaning: Birds are flying to a place that is hotter because the weather there is better.

Choice of Words: Birds are flying creatures with feathers and wings. Fly means to move through the air using wings. South is one of the four main directions, opposite of north. Warmer means having a higher temperature. Weather is the state of the atmosphere at a particular time and place.

Alternative Expressions

The birds are flying south because it's getting cold.

Meaning: This sentence means that the birds are flying south because the weather is getting colder where they are now.

Choice of Words: **The birds** are a specific group of birds. **Flying** is a present tense verb that shows that the action is happening now. **South** is a direction, and **it's getting cold** means that the weather is becoming colder.

The birds will fly south when the weather gets cold.

Meaning: This sentence means that the birds will fly south when the weather gets colder in the future.

Choice of Words: **The birds** are a specific group of birds. **Will fly** is a future tense verb that shows that the action will happen in the future. **South** is a direction, and **when the weather gets cold** means that the weather will become colder in the future.

Related Expressions