Hummingbirds typically lay two eggs per clutch, which is the most common and optimal number for their reproductive success. Studies show that most nests contain two eggs, although occasionally there may be one or, very rarely, three eggs
. The two-egg clutch balances the mother's energy investment: one egg risks losing the entire brood if it fails, while more than two eggs demand too much energy for incubation and feeding, potentially weakening the mother
. The eggs are usually laid one at a time, spaced one to two days apart, but they tend to hatch around the same time because the mother delays full incubation until the second egg is laid
. In summary, hummingbirds generally lay two eggs per brood, which allows the mother to effectively incubate and raise the chicks while managing her energy resources efficiently.
