Britannica Sources used in this answer

How many eggs do hummingbirds usually lay?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Illustration of a chestnut-collared swift (Cypseloides rutilus) in flight, showing its dark brown body and wings with a distinctive reddish-brown collar around its neck. — Apodiform Chestnut-collared swift (*Cypseloides rutilus*)

Hummingbirds typically lay two white eggs, though they rarely lay only one. These eggs are the smallest laid by any bird, representing approximately 10 percent of the female's body weight.12