A sharp-shinned hawk is a small, agile forest hawk that often catches birds by surprise, while a red-tailed hawk is a much larger, broad-winged raptor commonly seen soaring over open country. The quickest clues are size, shape, flight style, and—on many adults—the red-tailed hawk’s rusty-red upper tail.
At a Glance
These North American hawks can look alike at a distance, especially when lighting is poor or a bird is seen only briefly. Both are predators with hooked bills, strong feet, and brown-and-white plumage, but they belong to different groups of hawks and use different hunting approaches.
- Sharp-shinned hawk: Small, compact, and quick; usually associated with wooded areas and sudden attacks on birds.
- Red-tailed hawk: Large, broad-winged, and often seen circling or perched in open landscapes; commonly hunts mammals as well as other prey.
- Best field clue: Compare the whole silhouette and behavior, not just one color patch. A red tail is useful when visible, but it is not a feature of every red-tailed hawk.
“Sharp-shinned” refers to the hawk’s slim lower legs, not to unusually sharp talons. Red-tailed hawks take their name from a tail color that is most apparent in many adult birds. In either species, age, lighting, distance, and individual variation can make identification less straightforward.
Size and Body Shape
Size is usually the clearest difference. A sharp-shinned hawk is among the smallest hawks commonly encountered in North America. A red-tailed hawk is a large buteo, with a heavier body and much broader wings. If the two are seen in the same area, the red-tail typically looks imposing beside the compact sharp-shin.
Direct size comparisons can be deceptive when birds are far away: a nearer small hawk may appear larger than a distant one. Use proportions as well. Sharp-shinned hawks tend to have short, rounded wings and a long tail relative to their body. Red-tailed hawks have broad wings and a stockier outline, often with a broad chest and a substantial head.
Females are larger than males in both species, as is typical of many birds of prey. That difference means size overlaps between individuals, so “small” or “large” should be treated as evidence rather than a complete identification. A bird that looks small in isolation may be difficult to judge without a familiar reference, such as a nearby crow or a known perch.
Wing and Tail Shape
Look at the outline during flight. A sharp-shinned hawk often shows relatively short, rounded wings and a long, narrow-looking tail. It may appear to dart, weave, or change direction rapidly as it moves through trees. Its tail can help it steer through cluttered surroundings.
A red-tailed hawk usually presents a broader, more substantial silhouette. Its wings are broad and can look slightly bowed as the bird soars. The tail is also broad, but its color varies with age and plumage. On many adults, the upper surface is reddish, while the underside may look pale with a dark band near the end. A view from below does not always reveal the red upper surface.
Neither species has one unchanging shape in every posture. A hawk gliding with wings partly tucked can look quite different from one soaring with wings spread. Wind, distance, and the angle of view also affect the outline, so it helps to watch the bird for several moments rather than deciding from a single glance.
Plumage and Markings
Adult sharp-shinned hawks commonly have dark upperparts, a pale underside with reddish or orange horizontal barring, and a dark, banded tail. Their head may look small in relation to the body. Immature birds are generally brown above and streaked below, rather than showing the adult’s reddish barring.
Adult red-tailed hawks often have a pale underside and a dark band of streaking across the belly, sometimes called a belly band. The amount and arrangement of pale and dark plumage vary. Many adults have a rusty-red tail, but young birds usually have brown, banded tails and can lack the striking red feature people expect.
Red-tailed hawks also occur in different plumage forms. Some are much darker or paler than the familiar field-guide image, so a red tail or belly band may be hard to see. This is why a useful identification combines several clues: body shape, wing proportions, tail pattern, location, and behavior.
Flight and Hunting Behavior
Sharp-shinned hawks are adapted for pursuing small birds through dense cover. They often use surprise, moving quickly among trees or approaching a feeder area from nearby cover. Their flight can alternate between quick wingbeats and short glides. A bird disappearing behind branches and reappearing nearby is consistent with this agile, woodland style, though behavior alone cannot prove the species.
Red-tailed hawks commonly hunt from a perch or while soaring over open ground. They may circle on rising air currents and scan for prey, including small mammals. They can also hunt from roadside poles, trees, or other elevated spots that provide a view of open areas. Their flight tends to look steadier and less tightly maneuverable than that of a sharp-shinned hawk moving through trees.
Both birds are capable predators, and neither follows a rigid script. A red-tail can perch in woodland, and a sharp-shin can cross open space. Think of habitat and hunting behavior as supporting clues, not rules that exclude a species.
Habitat, Range, and Seasonal Movement
Both hawks occur widely across North America, but their local presence changes with season and region. Sharp-shinned hawks are associated with forests and wooded edges, including places where small birds gather. Some move south for winter, while others remain in parts of their range. During migration, they may be seen passing along coastlines, ridges, or other routes used by migrating raptors.
Red-tailed hawks occupy a broad range of habitats, including fields, grasslands, deserts, woodland edges, and areas altered by people. Their preference for open views and elevated perches makes them conspicuous in many landscapes. Some populations are resident, while others move seasonally; the pattern depends on location and conditions.
Seeing a hawk near a garden feeder does not automatically mean it is a sharp-shinned hawk, although small-bird activity can attract one. Likewise, a hawk beside a road is not necessarily a red-tail. Use the habitat to shape your first guess, then check the bird’s build, tail, and flight.
What Do They Eat?
Sharp-shinned hawks primarily take birds. Their compact size and maneuverability suit attacks on small and medium-sized birds, often in wooded settings. The sight of a hawk pursuing a bird near a feeder can be startling, but predation is a natural part of bird communities.
Red-tailed hawks have a broader, though still variable, diet. They often catch small mammals, such as rodents and rabbits, and may also take birds or reptiles. Local prey and habitat influence what is available. Both species may eat different prey than a casual observer expects, so diet is a tendency rather than an identification test.
How to Identify One in the Field
When a hawk appears briefly, note details in a consistent order. This reduces the temptation to identify it from one striking but unreliable clue.
- Estimate overall build: Does it look compact and small, or heavy and broad-winged?
- Check the silhouette: Look for a long tail and rounded wings versus a broad-winged, stocky shape.
- Watch its movement: Quick weaving through trees fits a sharp-shinned hawk; broad soaring over open ground fits a red-tail more often.
- Study the tail if visible: A rusty-red tail supports an adult red-tailed hawk, but a brown banded tail does not rule out a young one.
- Combine clues: Consider markings, habitat, and behavior together, and allow for uncertainty if the view is brief.
For example, a small hawk that rushes through trees near a flock of songbirds, with a long tail and quick turns, may be a sharp-shinned hawk. A broad-winged hawk circling over a field, with a reddish upper tail visible in good light, is more likely a red-tailed hawk. If the bird is distant or partly hidden, recording “unidentified hawk” is more accurate than forcing a conclusion.
Common Identification Mistakes
The most common mistake is assuming every red-tailed hawk has a bright red tail. Young birds do not show the familiar adult tail, and some adults have plumage that makes the color less obvious. The opposite mistake is treating any reddish tail as conclusive: other hawks may show warm colors, and light can distort what the observer sees.
Another frequent error is judging size without accounting for distance. Perspective can make a small bird look large if it is closer, while a large bird can appear small against a broad sky. Comparing wing shape and body proportions is more reliable than relying on apparent size alone.
Finally, not every bird of prey seen near a feeder is a sharp-shinned hawk. Other accipiters can also hunt birds, and other hawks may pass through the same habitat. If the identification matters, consult a trusted field guide and compare multiple features rather than relying on a single photograph or memory.
Frequently Asked Questions
Which hawk is bigger, a sharp-shinned hawk or a red-tailed hawk?
A red-tailed hawk is much larger and more robust. A sharp-shinned hawk is a small, compact hawk with a relatively long tail.
Does a red-tailed hawk always have a red tail?
No. Many adults have a reddish upper tail, but young birds usually have brown, banded tails. Plumage variation and viewing angle can also hide the red color.
Will a sharp-shinned hawk hunt birds at a feeder?
It may hunt small birds near a feeder or other place where birds gather. This is natural predatory behavior; the presence of a hawk does not mean the smaller birds are in unusual danger beyond ordinary predator-prey interactions.
How can I tell a sharp-shinned hawk from a red-tailed hawk in flight?
Look at the whole silhouette and flight style. Sharp-shinned hawks are smaller, with rounded wings and a longer tail, and may weave through trees. Red-tailed hawks are broader-winged and often soar over open areas.
Are sharp-shinned hawks and red-tailed hawks dangerous to people?
They generally avoid people. As with any wild raptor, observe from a respectful distance and do not approach a nest, handle a bird, or try to feed it. If a bird appears injured, contact an appropriate local wildlife professional rather than attempting care yourself.
The Bottom Line
For a quick comparison, think “small, agile, and wooded” for a sharp-shinned hawk, and “large, broad-winged, and often soaring” for a red-tailed hawk. The red tail is a helpful clue on many adults, not a requirement. The most dependable identification comes from combining shape, markings, behavior, and setting—and accepting uncertainty when the view is not good enough.