Hummingbird Nests: What They Look Like and What to Do If You Find One

A hummingbird nest is small enough to sit on a quarter when it's first built, and it has to be, because the bird building it weighs about as much as a nickel and has no help from a mate to gather materials or defend the site. What makes it a genuinely clever piece of engineering rather than just a tiny cup is spider silk: woven into the walls, it lets the whole structure stretch as two growing chicks outweigh their mother within a few weeks. Most people who have one nearby never spot it, not because hummingbirds are rare, but because the nest is built specifically not to be found. Here's what one actually looks like, and, more importantly, what the law and the birds' own biology say you should do if you find one anyway.

What a Hummingbird Nest Actually Looks Like

Per Georgia Wildlife DNR, a Ruby-throated Hummingbird's nest runs "1-1.75 inches" across on the outside and "1-2 inches" tall, with an inner cup barely three-quarters of an inch to an inch wide, small enough to be genuinely easy to miss even a few feet away. NestWatch, Cornell Lab's citizen-science nest-monitoring program, explains the construction: "spider silk (for stretchiness) and lichens on the outside (to help camouflage the nest)," with soft plant down, often from dandelions or thistles, lining the inside. The spider silk isn't incidental. It's the material that lets the nest expand as the two chicks inside grow, and it's part of why the whole structure often looks less like a nest and more like a knot or a bump of lichen on the branch itself.

Where They're Built, and How High

Height varies more by species than most single-number answers let on. Per NestWatch, "Ruby-throated Hummingbirds have been known to nest anywhere from 0.5 to 15 m high, though the average nest height is 5-7 m," roughly 16 to 23 feet, on a thin, often downward-sloping forked branch that supports the nest from below while foliage conceals it from above. Anna's Hummingbird, common on the West Coast, tends to nest lower, "2-9 m but rarely as high as 20 m," meaning a nest at head height or just above it is entirely plausible for this species in a way it usually isn't for a Ruby-throated. Location can get creative too: NestWatch notes hummingbirds sometimes build on "human-made supports like windchimes, faucets, and string lights" when the structure and concealment happen to line up.

Why Disturbing an Active Nest Is Actually Against the Law

This is worth knowing before "what should I do about it" even comes up. Per the U.S. Fish and Wildlife Service, "under the MBTA it is illegal to destroy a nest that has eggs or chicks in it or if there are young birds that are still dependent on the nest for survival," and possessing a nest you've removed is illegal without a federal permit. The Migratory Bird Treaty Act covers native migratory bird species broadly rather than naming hummingbirds specifically, but hummingbirds are native migratory birds like the species the law was built around, so the same active-nest protection applies to them. That turns "leave it alone" from a nice-to-have courtesy into an actual legal obligation while eggs or dependent chicks are present, which is a stronger reason than etiquette to simply wait it out.

If You Find One: What to Do

The full commitment is shorter than it sounds. Per Birds and Blooms, a female incubates her typical clutch of two eggs for "15 to 18 days," and chicks "fledge (leave the nest) 18 to 28 days after hatching." Add it up and an active nest is rarely a commitment of more than five to seven weeks from egg to empty nest. In that window: leave the specific branch alone, which means postponing pruning or trimming that limb rather than the whole tree or shrub; keep pets and hoses away from the immediate area; and resist the urge to check on it repeatedly or photograph it up close. Hummingbirds are generally tolerant of activity at a normal distance, but repeated close approaches to any bird's nest raise the real risk of the parent abandoning it, which undoes weeks of investment for the sake of a closer look. For what's actually happening inside the nest during those weeks, what a chick looks like, what it's fed, and why it's so rarely seen, see our baby hummingbirds guide.

A reliably stocked feeder nearby genuinely helps during this exact window, not as a substitute for natural forage, but as one less trip a female has to make while she's raising chicks essentially alone and running a tight energy budget throughout. Whether that's a from-scratch homemade mix or a no-boil powder like Nectar Bliss's, keeping the feeder clean and full through the nesting weeks is a small, honest way to make that period slightly easier on her.

What Actually Threatens a Nest

Part of why the concealment and the legal protection both matter is that a hummingbird nest has real predators to contend with. Per Birds and Blooms, eggs and chicks are vulnerable to "snakes, lizards, blue jays, crows, ravens, squirrels, chipmunks, and raccoons," a list that covers everything from tree-climbing mammals to opportunistic birds. The same article's practical suggestions line up with the census-level advice above: favor "thorny shrubs, cacti, clotheslines, and garden lights and statues" as nesting-adjacent structures that are harder for ground-based predators to reach, and specifically "carefully check for the birds' tiny camouflaged nests" before trimming any shrub or tree during breeding season, precisely because the nest's own camouflage that protects it from predators is the same camouflage that makes it easy for a person with pruning shears to miss.

Why You Almost Never See a Male Nearby

If you're watching a nest and never see a second adult, that's normal, not a sign anything's missing. In hummingbirds, the female builds the nest, incubates the eggs, and feeds the chicks entirely on her own; males don't participate in nest-building or chick-rearing at all. For a full breakdown of what a male hummingbird actually looks like, and why they're generally harder to spot around a yard than females and juveniles, see our guide to telling male and female hummingbirds apart.

When This Happens Each Year

Nest-building follows the same spring migration wave covered in our guide to spring feeder timing: nesting begins shortly after females arrive in a given region, which per Audubon's regional data runs from late February in the Gulf South to early-to-mid May in the northern Rockies. In warmer parts of the range, a female may raise more than one brood in a season; Georgia Wildlife DNR notes that in Georgia specifically, "ruby-throats nest twice a year." Further north, with a shorter season to work with, one brood is typically all there's time for.

That timing also explains why a nest found in midsummer isn't unusual even in places where the spring arrivals are long gone. A second brood started in June or July, in a region where that's biologically possible, looks identical in every respect to a first-brood nest started in April, same size, same materials, same five-to-seven-week timeline start to finish. If you're trying to guess how much longer a nest you've found will be active, counting forward from whenever you first noticed activity is a more reliable approach than assuming it must be near the end simply because the season feels late.