They travel by day and night.

Meaning: Birds continue their migration during both daytime and nighttime.

Choice of Words: Travel means to go from one place to another. Day is the time between sunrise and sunset. Night is the time between sunset and sunrise.

Alternative Expressions

They move day and night.

Meaning: This means that the group of people or things are changing their position or location both during the day and the night. It implies that they are constantly on the move or that they are moving over a long distance.

Choice of Words: They refers to a group of people or things that are performing the action of moving. Move means to change position or location. Day and night are two distinct periods of time, day being the time when the sun is up and night being the time when the sun is down.

They journey through day and night.

Meaning: This means that the group of people or things are traveling from one place to another over a long distance, and they are doing it both during the day and the night. It implies that they are on an extended journey or that they are traveling a long distance.

Choice of Words: They refers to a group of people or things that are performing the action of journeying. Journey means to travel from one place to another, typically over a long distance, often for pleasure or exploration. Through indicates that they are traveling through the periods of day and night.

Related Expressions