"lays eggs" is a correct and usable phrase in written English.
You can use it when referring to a female animal's reproductive behavior; for example, "The female migratory bird lays eggs in the springtime."
The female mite lays eggs that hatch into larvae.
Afterward, the male will usually remain attached to the female as she lays eggs.
The individual acting as a female lays eggs inside the mantle cavity shortly after molting.
The female lays eggs near the base of the peach tree.
The female moth pollinates while she lays eggs (oviposits) in the corolla of the flower.
During the first summer of a female fritillary butterfly's life, she lays eggs and dies.
It tunnels through human skin, invades the bloodstream and lays eggs.
A female lays eggs called nits that she attaches to strands of hair.
And since the female FTC moth lays eggs exclusively in maples, outbreaks begin in maple stands.
"When flood water dries up," he says, "the female mosquito lays eggs in the mud.
It is nocturnal, lives in burrows & lays eggs that take up to 16 months to hatch.
