When and where do hummingbirds lay their eggs?  

Migration North: Hummingbirds migrate to their breeding grounds in the spring, typically arriving when flowers begin to bloom and a stable food supply is available. 

Establishing Territories: Male hummingbirds arrive at breeding grounds first and establish territories to attract females. They perform elaborate courtship displays to entice potential mates. 

Nesting Sites: Female hummingbirds select nesting sites within their mate's territory, usually in secluded locations with dense foliage for protection from predators. 

Nest Construction: Hummingbird nests are typically constructed of plant materials such as moss, lichen, and spider silk, woven together to create a small cup-shaped structure. 

Egg Laying: Once the nest is constructed, the female lays one to three eggs, depending on the species. Hummingbird eggs are tiny, about the size of a jellybean, and often white or pale in color. 

Incubation: The female incubates the eggs for about 14 to 23 days, depending on the species, keeping them warm with her body heat. During this time, she rarely leaves the nest, relying on the male to bring her food. 

Fledging: After the eggs hatch, the female continues to care for the chicks, feeding them regurgitated nectar and insects. The chicks grow rapidly and fledge, or leave the nest, about three to four weeks after hatching. 

Second Broods: In some cases, female hummingbirds may raise multiple broods in a single breeding season, laying new eggs and starting the nesting process over again.