Hummingbird moths are fantastic imposters that can look strikingly similar to the popular birds.
So knowing what to look for can help you tell the difference between the large insects and tiny birds.
And, in the caterpillar stage, they are called hornworms.
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Hummingbird moths share many common characteristics with hummingbirds.
The moths sometimes even visitnectar feedersmeant for hummingbirds.
Moreover, their body shapes are similar.
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These moths can have brightly colored bodies similar to the birds.
The many similarities between hummingbirds and hummingbird moths are a case of convergent evolution.
At first, inexperienced birders might assume that hummingbird moths are baby hummingbirds.
However, baby hummingbirds cannot fly and do not leave their nests until they are nearly adult size.
While some hummingbirds have crests, or tufts of feathers on their heads, no North American species do.
And hummingbird plumes don’t typically face forward in a distinct pair like moth antennae.
Plus, a moth will have two antennae while a crested hummingbird will have just one central feather plume.
Moths can even have transparent sections to their wings, which hummingbirds will never have.
Moths also sometimes have their wings spread even while perched while hummingbirds fold their wings when they land.
Legs
Hummingbird moths have six legs that often dangle as they fly and feed.
Moths can also have a furry look to their body while hummingbirds are more sleek and smooth.
Bill Shape
Hummingbird bills are slim and needle-like, but they generally have a slightly thicker base.
When extended, the tongues can have a distinct curve or curl.
And they can be very difficult to see.
Birds can hold their tails still or fan or pump them while hovering and feeding.
Insects nearly always open their tails to a short fan but without any active pumping motions.
Flocks
Hummingbirds are more aggressive than moths.
While flocks of the birds might form at feeding areas, it is more common to see hummingbirds alone.
However, hummingbird moths are more likely to travel together and show no aggression toward other moths.
Habitats
Hummingbirds use widely varied habitats, depending on the needs of each species.
Activity Time
Hummingbirds are diurnal, meaning they’re active during the day and sleep at night.
Most hummingbird moths are nocturnal, though some are active during the day.
Both hummingbirds and hummingbird moths often feed during twilight.
But, if one is spotted after dark, it is almost always a hummingbird moth.
Flower Preference
Both of these creatures sip nectar from a wide range of flowers.
Many hummingbird moths prefer pale blooms.
But richer, brighter colors are more likely to attract hummingbirds, depending on which flowers are locally available.
