Baby swallows eat soft-bodied insects, and in the wild, their parents feed them dozens of times per hour with flies, mayflies, caddisflies, and other small flying bugs. If you’ve found a baby swallow on the ground, the most important thing to know is that keeping it alive requires frequent feedings of insect-based food, not bread, not birdseed, and not worms from your garden. Before you start feeding, though, you need to figure out whether this bird actually needs your help and how to get it to a licensed wildlife rehabilitator as quickly as possible.
Check if the Bird Actually Needs Help
Not every baby bird on the ground is in trouble. Baby swallows that are fully feathered with short tail streamers and can hop or flutter are fledglings. They’re supposed to be on the ground, learning to fly, with their parents still feeding them nearby. Picking up a fledgling and bringing it indoors does more harm than good.
A bird that truly needs help is a nestling: mostly naked or covered in fuzzy down, eyes closed or barely open, unable to stand or grip your finger. If you can find the nest and it’s intact, the best move is to put the baby back. Parent birds will not reject a chick because you touched it. Barn swallow nestlings become flight risks after about 15 days old, meaning even handling them at that stage can cause them to leave the nest too early. So if the bird looks close to fully feathered, place it somewhere sheltered nearby rather than back in the nest.
Why You Should Contact a Rehabilitator First
Swallows are protected under the Migratory Bird Treaty Act in the United States, which means you need a federal permit to keep and care for one. There is a “Good Samaritan” provision that allows anyone to pick up a sick, injured, or orphaned migratory bird, but only for the purpose of immediately transporting it to a permitted rehabilitator. Your state may have additional restrictions on top of the federal rules.
To find a rehabilitator near you, search the directory at your state’s fish and wildlife agency or call your nearest wildlife rescue hotline. Rehabilitators have access to proper insectivore diets, supplements, and feeding techniques that are very difficult to replicate at home. A baby swallow raised on the wrong food can develop metabolic bone disease, poor feather quality, and organ problems that aren’t obvious until it’s too late.
Emergency Feeding Until You Reach Help
If you can’t get the bird to a rehabilitator right away, here’s what to do in the short term. The goal is to keep the chick hydrated and fed for hours, not days.
Start with hydration. Use an eyedropper to offer a single drop of lukewarm Pedialyte, diluted Gatorade, or distilled water at the edge of the beak. A small paintbrush dipped in water also works. Don’t force liquid into the mouth, as baby birds can easily aspirate fluid into their lungs.
For food during the first few days of care, the best option is a puree of soft-bodied insects. You can make this from:
- Mealworms (dead, from a pet store, with the hard heads removed)
- Small crickets (fresh bodies, legs removed)
- Frozen bloodworms (sold in the fish food section of pet stores)
- Freeze-dried insects (rehydrated with a little water)
Mash these into a smooth paste and offer tiny amounts on the tip of a toothpick, tweezers, or a small paintbrush. Very young nestlings need to be fed every 15 to 20 minutes during daylight hours. That’s not an exaggeration. Swallow chicks have extremely fast metabolisms and can decline within hours without food.
What Never to Feed a Baby Swallow
Bread, milk, birdseed, and earthworms are all harmful. Swallows are strict insectivores. Their digestive systems cannot process grains, dairy, or the parasites that earthworms carry. Wet dog kibble is another common suggestion that causes problems. Dog food typically contains high amounts of grain, sugar, and soy with too little animal protein. Feeding it to a baby swallow can cause dehydration, stunted growth, and metabolic bone disease.
Even well-intentioned diets of plain ground meat or scrambled egg fall short without supplements. Unsupplemented animal protein is dangerously low in calcium. Growing chicks need a calcium-to-phosphorus ratio of roughly 2:1 to build healthy bones. Without that balance, their legs can bow and their bones can fracture under their own body weight within days.
If You Must Care for the Bird Longer
Sometimes a rehabilitator is hours away or can’t take the bird immediately. If you’re providing care beyond a single day, you need to address nutrition more carefully.
High-quality kitten kibble (not dog kibble) soaked in water until soft can serve as a temporary base diet because it’s higher in animal protein. Some experienced rehabbers have raised swallow chicks on combinations of minced ox heart, scrambled egg, dead mealworms, and insectivore mix, but all of these require vitamin, mineral, and calcium supplements to be nutritionally complete. Commercial insectivore diets designed for zoo birds also contain taurine, an amino acid critical for eye development and feather pigmentation that insects naturally provide but most homemade diets lack.
Calcium supplementation is essential with any meat-based diet. The veterinary guideline is about 5 grams of calcium carbonate per half-kilogram of meat. For a tiny swallow chick, that translates to a very small pinch of calcium powder (sold at pet stores as reptile calcium supplement without vitamin D3 added) dusted onto each feeding. Too much calcium is also dangerous, which is another reason professional care is far safer than guessing at home.
How Diet Affects a Swallow’s Development
Research from the Cornell Lab of Ornithology found that for baby swallows, what they eat matters as much as how much they eat. In the wild, swallow parents target insects like mayflies, caddisflies, and dragonflies whose larvae develop in clean water. These aquatic insects are rich in omega-3 fatty acids and specific nutrients that support brain and feather development in ways that terrestrial insects like mealworms don’t fully replicate.
This is why even a seemingly healthy hand-raised swallow can have dull, brittle feathers or poor flight ability at fledging. The bird may survive on mealworms and kitten chow, but it won’t thrive the way a wild-raised chick would. A licensed rehabilitator with access to varied insect sources and commercial insectivore formulas gives the bird the best chance of eventually being released and surviving on its own.
Identifying What You’ve Found
Knowing your species helps a rehabilitator prepare. Barn swallows are the most common species people find. Adults are slightly smaller than a bluebird with a rusty-orange throat, dark blue back, and long forked tail. Their nests are open mud cups, often stuck to the walls or rafters of porches, barns, and garages. If the nest is a mud cup under an eave, you almost certainly have a barn swallow.
Tree swallows nest in cavities like old woodpecker holes or nest boxes, and their chicks may turn up if a box falls or is disturbed. Chimney swifts, which look similar to swallows but are a different family entirely, build nests inside chimneys. Swift chicks have tiny feet and cannot perch on a finger the way a swallow can. All of these species are protected, and all eat insects exclusively as nestlings. The feeding advice above applies to any of them in an emergency, but getting the bird identified correctly helps the rehabilitator plan long-term care.