Hummingbirds are best known for their love of nectar, but many backyard birders wonder whether these tiny birds will also snack on the ants that so often invade their feeders. The short answer is yes, but with some important context.
Quick Answer: Hummingbirds do occasionally eat ants, but they are not a preferred or significant part of their diet. Ants may be consumed incidentally while a hummingbird forages on flowers, or caught opportunistically in the wild. The more pressing concern for most gardeners is that ants invade hummingbird feeders and can contaminate the nectar, which actively deters hummingbirds from feeding.
Key Takeaways
- Hummingbirds are primarily nectar feeders, but they also rely on protein-rich insects to survive.
- Ants are not a preferred food source, but hummingbirds will eat them occasionally when encountered during foraging.
- Insect protein is essential for hummingbird health, particularly during breeding season and migration.
- Ants found on hummingbird feeders can contaminate sugar water and drive birds away.
- Simple deterrents like ant moats are highly effective at protecting feeders.
- Hummingbirds are opportunistic feeders and will consume a wide variety of small invertebrates when nectar is scarce.
What Do Hummingbirds Actually Eat?
Most people associate hummingbirds entirely with flower nectar and sugar water, but their diet is more varied than that. Nectar provides the fast-burning carbohydrate energy these birds need to fuel their extraordinary metabolic rate, but it contains very little protein or fat. To make up for this, hummingbirds actively hunt small invertebrates throughout the day.
Their preferred prey includes gnats, midges, aphids, fruit flies, small beetles, and spiders. These protein-rich insects supply the amino acids, vitamins, and minerals that nectar simply cannot provide. This is especially important during the breeding season, when females need additional nutrition to produce eggs, and during migration, when birds need to build and repair muscle tissue.
For a deeper look at what these birds consume across all seasons, the full breakdown of hummingbird diet and nutrition covers everything from daily caloric needs to seasonal foraging patterns.
Do Hummingbirds Eat Ants?
Yes, hummingbirds will eat ants, but it tends to happen incidentally rather than by deliberate choice. When a hummingbird is probing a flower for nectar, it may encounter ants that are also feeding on the bloom. In these situations, the hummingbird will sometimes consume the ants along with the nectar, particularly if the ants are very small.
There is no strong evidence that hummingbirds actively seek out ants as a primary food source. Unlike some insect-eating birds that will methodically hunt ant colonies, hummingbirds are not built for that style of foraging. Their long, slender bills and hovering style of feeding are adapted for reaching nectar, not for ground-level insect hunting.
That said, hummingbirds are opportunistic feeders by nature. If a small ant presents itself within reach, a hummingbird may well take it. Small invertebrates of almost any kind can end up in a hummingbird’s stomach, particularly when natural nectar sources are limited.
How Do Ants End Up in a Hummingbird’s Diet?
The most common scenario is a simple coincidence during foraging behaviour. Many ant species are attracted to the same flowering plants that hummingbirds visit. Some ants act as guard ants on certain plant species, protecting extrafloral nectaries in exchange for sugar. When a hummingbird arrives to feed, it may inadvertently ingest one or more ants in the process.
Hummingbirds also catch insects in mid-air using a technique called hawking, where they dart after flying prey. While ants are not typically airborne, arthropods of similar size may be targeted this way. Flying ant swarms, which occur seasonally in many regions, could potentially attract hummingbirds opportunistically during these events.
It is worth noting that hummingbirds have also been observed eating mosquitoes and other very small insects, which gives some indication of how broad their insect diet can be when the opportunity presents itself.
Are Ants Harmful to Hummingbirds?
In terms of direct consumption, small ants are unlikely to harm a hummingbird. The bird’s digestive system can handle small invertebrates, including ants, without difficulty. However, some ant species are capable of biting or stinging, which could theoretically discourage a hummingbird from feeding in areas where aggressive species are present.
The bigger concern is not whether hummingbirds eat ants, but whether ants are disrupting the hummingbirds’ food supply. Ants that invade hummingbird feeders can quickly make the nectar unpalatable, clog feeding ports, and in large numbers, can deter hummingbirds from using the feeder entirely.
For anyone managing a garden feeding station, understanding whether ants are bad for hummingbird feeders is just as important as understanding what hummingbirds eat.
Ants and Hummingbird Feeders: The Real Problem
While the occasional ant in the wild poses little threat, ant contamination at a feeder is a genuine issue. Ants are attracted to the high sugar content of hummingbird nectar, and once a scout finds a food source, a trail of workers quickly follows.
Problems caused by ants at feeders include:
- Contaminating the nectar with bodies, formic acid, and waste makes it less attractive and potentially harmful to birds.
- Clogging feeding ports, which prevents hummingbirds from accessing the nectar at all.
- Creating a deterrent effect, where hummingbirds learn to avoid a feeder that is consistently crawling with insects.
Ants that fall into the nectar reservoir and drown can cause the sugar water to ferment more quickly, increasing how often you need to clean and refill the feeder.
How to Keep Ants Away from Hummingbird Feeders
The good news is that ant problems at feeders are straightforward to manage without using any chemicals that could harm birds or other wildlife.
Ant moats are the most reliable solution. These small water-filled cups attach above the feeder and create a barrier that ants cannot cross. Many modern feeders come with a built-in moat, or you can purchase one separately to add to an existing setup. Keep the moat topped up, especially during warm weather when evaporation is faster.
Other practical steps include:
- Relocating the feeder away from branches, fences, or walls that ants are using as a highway to reach it.
- Cleaning the exterior of the feeder regularly, as drips and residue left on the outside attract ants and bees alike.
- Avoid using petroleum jelly or oil-based products on feeder poles, as these can coat birds’ feathers if they accidentally come into contact with them.
- Choosing a feeder with recessed ports, which reduces dripping and makes it harder for ants to reach the nectar.
Hummingbirds themselves sometimes deal with insect competition in surprising ways. They have also been observed dealing with wasps near feeders, which gives a sense of just how assertive these small birds can be when protecting a food source.
Final Thoughts
Hummingbirds do eat ants on occasion, but it happens incidentally rather than as a deliberate foraging strategy. These birds are built for nectar feeding and aerial insect hunting, and ants simply do not represent an important part of their diet.
The more practical issue for anyone maintaining a garden feeding station is keeping ants out of the nectar supply, which a basic ant moat can resolve quickly and permanently.
Understanding the full scope of what hummingbirds eat helps explain why a clean, well-maintained feeder paired with nectar-rich planting is so effective at attracting and keeping these birds in your garden.
FAQ – Do Hummingbirds Eat Ants?
Q: Do hummingbirds intentionally hunt ants?
A: No. Hummingbirds do not actively seek out ants the way they pursue gnats or fruit flies. Any ants they consume are typically incidental, encountered while the bird is feeding at a flower.
Q: Can ants hurt hummingbirds?
A: Small common ants are unlikely to harm a hummingbird directly. Biting or stinging species could theoretically cause discomfort, but the more significant harm comes from ants contaminating feeder nectar.
Q: Will hummingbirds stop using a feeder if ants are present?
A: Yes, in many cases. If a feeder is heavily infested with ants, hummingbirds often abandon it and look for a cleaner food source.
Q: What insects do hummingbirds prefer to eat?
A: Hummingbirds most commonly eat gnats, midges, aphids, fruit flies, and small spiders. These provide the protein and fat that nectar cannot supply.
Q: Do hummingbirds eat fire ants?
A: It is very unlikely. Fire ants are aggressive, painful, and capable of swarming quickly. Hummingbirds would avoid areas where fire ants are present in large numbers.
Q: How do I stop ants from getting into my hummingbird feeder?
A: The most effective method is an ant moat, a small cup filled with water that hangs above the feeder. Ants cannot cross the water barrier. Keeping the feeder clean and free of sticky residue also helps.
Q: Are ants attracted to hummingbird feeders?
A: Yes. The high sugar content in hummingbird nectar is very attractive to ants. Even a small drip on the outside of a feeder can be enough to draw them in.
Q: Do flying ants attract hummingbirds?
A: Possibly, on an opportunistic basis. During seasonal flying ant events, hummingbirds may take advantage of the abundance of small airborne insects, but this has not been extensively studied.
Q: Is it safe for hummingbirds to eat insects from my garden?
A: Generally, yes, provided your garden is free of pesticides. Insecticide-treated plants can poison the insects that hummingbirds eat, which is one reason why avoiding chemical pest control near bird-friendly planting matters.
Q: How much of a hummingbird’s diet is insects versus nectar?
A: Estimates vary, but insects and spiders are thought to make up a meaningful portion of a hummingbird’s daily intake by volume, even though nectar provides the bulk of their energy. Protein from insects is essential for muscle, feather, and egg development.
Q: Can ants contaminate hummingbird nectar?
A: Yes. Ants that fall into the nectar can introduce formic acid and organic matter, which accelerate spoilage and make the nectar less appealing or potentially harmful to birds.
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References and Sources:
- Williamson, S.L. (2001). A Field Guide to Hummingbirds of North America (Peterson Field Guides). Houghton Mifflin. https://books.google.com/books?id=XtZ1xotyal8C
- Stiles, F.G. (1995). “Behavioural, ecological and morphological correlates of foraging for arthropods by the hummingbirds of a tropical wet forest.” The Condor, 97(4), 853–878. https://academic.oup.com/condor/article-abstract/97/4/853/5126159
- Brice, A.T. (1992). “The essentiality of nectar and arthropods in the diet of the Anna’s Hummingbird (Calypte anna).” Comparative Biochemistry and Physiology, 101A(1), 151–155. https://www.sciencedirect.com/science/article/abs/pii/0300962992906435
- Rico-Guevara, A., & Rubega, M.A. (2011). “The hummingbird tongue is a fluid trap, not a capillary tube.” PNAS, 108(23), 9356–9360. https://www.pnas.org/doi/10.1073/pnas.1016944108
- Montgomerie, R.D., & Redsell, C.A. (1980). “A nesting hummingbird feeding solely on arthropods.” The Condor, 82(4), 463–464. https://doi.org/10.2307/1367577
I never thought they’d eat some ants for protein. I’m glad it’s not their favorite!!!!!!!
Hello Penny!
It’s indeed surprising to many that hummingbirds occasionally eat ants for protein! Nature has its fascinating peculiarities. Thankfully, nectar remains their top favorite.
Also, there is always something new to learn about these tiny wonders!
Thanks, and do have a wonderful day.