Meaning: This means the same thing as the first sentence, but it uses a different word for chicken.
Choice of Words:Hen is another word for a female chicken, and lays still means to put something down. An egg is still a round object that comes from a chicken and can hatch into a baby chicken.
The rooster lays an egg
Meaning: This sentence is incorrect because roosters do not lay eggs.
Choice of Words:Rooster is a male chicken, and lays still means to put something down. However, roosters do not lay eggs. Only hens lay eggs.