Hummingbirds are amazing little birds that capture our imagination. Their ability to hover in midair as they drink nectar from flowers is fascinating to watch. Hummingbirds build tiny nests out of plant fibers, spiderwebs, and lichens to lay their even tinier eggs in. This raises an interesting question – do hummingbirds leave their eggs at night when they are not sitting on the nest?
Quick answer
No, hummingbirds do not leave their eggs at night. Hummingbird mothers are dedicated parents who incubate their eggs constantly both day and night until they hatch. They may briefly leave the nest for very short periods to hunt for food, but hummingbirds never abandon their eggs overnight.
Do hummingbirds sleep at night?
Yes, hummingbirds do sleep at night despite their high metabolism. They enter a hibernation-like state called torpor where their metabolic rate and body temperature drops dramatically. This allows them to conserve energy overnight when they cannot feed. During torpor, the mother’s body temperature matches the environment, which keeps the eggs at the proper warm temperature for development.
How long do hummingbirds incubate their eggs?
Hummingbirds incubate their eggs for 14 to 23 days. Here is the incubation period for some common hummingbird species:
Species | Incubation Period |
Ruby-throated Hummingbird | 14 days |
Black-chinned Hummingbird | 16 days |
Anna’s Hummingbird | 16-17 days |
Rufous Hummingbird | 16-17 days |
Allen’s Hummingbird | 16-18 days |
Calliope Hummingbird | 17 days |
Broad-tailed Hummingbird | 17-18 days |
Violet-crowned Hummingbird | 17-19 days |
Buff-bellied Hummingbird | 23 days |
During this entire incubation period, the mother hummingbird is diligent about sitting on the eggs both day and night to provide warmth and protection.
Do male hummingbirds help incubate the eggs?
No, only female hummingbirds incubate the eggs. Males do not participate at all in this parental duty. The female alone is responsible for keeping the eggs warm until they hatch.
When do hummingbirds lay eggs?
Hummingbirds generally lay eggs in the spring and summer months. However, the exact nesting season varies by species and location:
Species | Nesting Season |
Ruby-throated Hummingbird | March to June |
Black-chinned Hummingbird | March to July |
Anna’s Hummingbird | December to June |
Rufous Hummingbird | March to July |
Allen’s Hummingbird | December to July |
Calliope Hummingbird | April to July |
Broad-tailed Hummingbird | May to July |
Violet-crowned Hummingbird | January to July |
Buff-bellied Hummingbird | March to August |
During the nesting season, female hummingbirds are sitting on the nest incubating eggs both night and day.
How many eggs does a hummingbird lay?
Hummingbirds usually lay 2 eggs per clutch. Here are the typical clutch sizes for some common species:
Species | Clutch Size |
Ruby-throated Hummingbird | 2 eggs |
Black-chinned Hummingbird | 2 eggs |
Anna’s Hummingbird | 2 eggs |
Rufous Hummingbird | 2 eggs |
Allen’s Hummingbird | 2 eggs |
Calliope Hummingbird | 2 eggs |
Broad-tailed Hummingbird | 2 eggs |
Violet-crowned Hummingbird | 2 eggs |
Buff-bellied Hummingbird | 2 eggs |
The mother hummingbird incubates these 2 eggs continuously until they hatch.
How often do hummingbirds leave the nest?
During incubation, hummingbird mothers do not leave the nest very frequently. They may take short breaks of 5-15 minutes occasionally to hunt for food to keep up their energy. However, they spend the vast majority of their time on the nest incubating the eggs. At night, they rarely if ever leave the nest unattended.
Do hummingbirds ever abandon their eggs?
It is extremely rare for a hummingbird to permanently abandon her eggs. Once laid, hummingbird mothers are completely committed to incubating the eggs. However, there are a few scenarios where she may leave them for an extended period:
- If the eggs are infertile and never develop, she may eventually abandon the nest after several weeks.
- If the nest is disturbed or predators threaten the area, she may leave temporarily until it is safe again.
- If the mother dies or is preyed upon during incubation, the eggs will be left unattended.
- During very severe weather like hailstorms, she may seek emergency shelter and leave the eggs for a short time.
In most cases though, hummingbird mothers continue diligently incubating for the entire 2-3 week period until the eggs hatch.
Conclusion
In summary, hummingbirds do not typically leave their eggs unattended at night. The mother hummingbird stays on the nest incubating the eggs 24/7 from when she lays them until they hatch two to three weeks later. She is dedicated to protecting the eggs and providing the constant warmth they need to develop. While she may occasionally take short breaks to eat and replenish herself, she does not abandon the eggs overnight during the incubation period. Hummingbird mothers provide attentive parental care by continuously incubating their tiny eggs both day and night.