How to Find and Photograph Peregrine Falcons

Where to Find Peregrine Falcons

To find Peregrine Falcons, focus on cliffs, coasts, large river gorges, and tall urban structures. Along coasts and major rivers, scan cliff faces and tall bridges for perched birds or for whitewash and feather remains that indicate regular perches. Early morning and late afternoon are often active periods, with birds calling, flying between perches, or hunting.

In cities, watch tall buildings, towers, and bridges—especially those known to host nests or nest boxes. Peregrines often perch on prominent ledges, antennae, or corners from which they can survey the surroundings. Urban birds frequently hunt pigeons and other city birds along riverfronts, parks, and squares.

Farther inland or on migration, check raptor watch points, ridgelines, and large wetlands or reservoirs. A distant, dark, fast-flying falcon with pointed wings and a compact build, especially near concentrations of waterfowl or shorebirds, is worth careful scrutiny.

How to Photograph Peregrine Falcons

Photographing Peregrine Falcons can be both challenging and rewarding. Their speed and preference for high perches demand planning and patience. A telephoto lens in the 400–600 mm (full-frame equivalent) range is ideal for capturing perched birds and moderate-distance flight shots.

For perched birds, identify regular perches—specific ledges, corners, or cliff outcrops where birds rest, pluck prey, or keep watch. Choose a vantage point with a clear view and good light, and remain still and quiet. In urban settings, sidewalks, riverfront promenades, or upper levels of parking garages can offer surprisingly good angles at eye level or slightly below perched birds.

Flight and hunting photography requires anticipation. Watch for behavior cues: a bird that becomes more alert, shifts posture, or calls before launching may be preparing to hunt. Try to position yourself so that you have open sky or distant landscape as a background, with the sun behind you and to one side. High shutter speeds are essential to freeze their swift flight and stoops.

At cliff or building nests, be especially cautious not to disturb birds. If adults repeatedly alarm-call, circle without landing, or hesitate to approach the nest ledge, you are too close—move farther back until they resume normal behavior. Urban nest cameras and public viewing areas can offer excellent opportunities for observation and photography without intruding on nest sites.

With patience, careful observation of routines, and respect for their space, Peregrine Falcons can provide some of the most dramatic raptor images: a sleek adult perched high above a river, a falcon slicing across the sky with pointed wings swept back, or a bird returning to a ledge with prey—a vivid portrait of one of the world’s most celebrated aerial hunters.

Identification

General Appearance

The Peregrine Falcon is a robust, broad-shouldered falcon with long, pointed wings and a relatively short tail. Adults have blue-gray to slate-gray upperparts, a darker hooded head, and pale underparts marked with dark barring. The face features a bold dark cap and a prominent dark malar stripe (“mustache”) that extends from the eye down the side of the face, accentuating the pale cheek.

The bill is short and sharply hooked, with the characteristic “tooth” on the upper mandible typical of falcons. The eyes are large and dark, set in a deep hood that gives a fierce, focused expression. In flight, Peregrines look long-winged and muscular, with powerful wingbeats and a streamlined posture, especially in level flight and during their spectacular stoops.

Key Field Marks

• Medium-large falcon with long, pointed wings and relatively short tail
• Blue-gray to slate-gray upperparts in adults; pale underparts with dark barring
• Bold dark hood and mustache stripe framing a pale cheek
• Strong, short, hooked bill with a distinct falcon “tooth”
• Large, dark eyes set in a dark hooded head
• In flight, broad-based, pointed wings and a compact, powerful body; fast, purposeful wingbeats

Measurements

Peregrine Falcons show pronounced sexual size dimorphism, with females significantly larger than males. Overall length is typically about 34–50 cm (13–20 in). Wingspan ranges roughly 80–120 cm (31–47 in). Weight commonly falls between about 330 and 1,000 grams (12–35 oz), with males on the lower end and females at the higher end of that range.

Despite their moderate size, their muscular build, long wings, and streamlined profile give them great power and efficiency in flight.

Plumages

Adult Peregrines show a blue-gray to slate upper surface, often with slightly darker wingtips. The tail is gray with darker bands and a paler tip. The head is dark, forming a hood that continues down around the eyes and onto the bold dark mustache stripe. The throat and upper chest are pale, often creamy or buff, transitioning into underparts marked with dark barring or chevrons, particularly on the lower belly and flanks.

Juveniles are browner overall, with dark brown upperparts edged with buff, giving a more mottled appearance. The underparts of juveniles are buffy with dark streaks rather than bars, and the head and facial pattern are browner rather than slate. As they age and molt, they acquire the cleaner blue-gray tones and barred underparts of adults.

There is considerable geographic variation, with some northern and coastal forms showing paler or darker plumage, but the basic pattern—hooded head, mustache stripe, and barred underparts—is consistent across subspecies.

Similar Species

• Prairie Falcon: Similar size but paler overall, especially on the underwing, where Prairie Falcons show a contrasting dark “armpit” patch at the base of the primaries. Prairie Falcons generally appear browner above and have a lighter hood and weaker mustache stripe.
• Gyrfalcon: Larger, bulkier, and broader-winged, with more varied plumages (ranging from dark to almost white). Gyrfalcons have less of a neat hood-and-mustache pattern and often appear more heavily spotted or mottled below rather than neatly barred.
• Merlin: Smaller, more compact, with shorter tail relative to wings and typically more uniform, darker upperparts. Merlins lack the strong hooded appearance and bold mustache stripe of Peregrines and have more streaked, less barred underparts.
• Other medium raptors: Accipiters (like Cooper’s or Sharp-shinned Hawks) have broader, more rounded wings, longer tails, and flap–glide flight rather than the falcon’s sleek, pointed-wing profile and rapid, direct flight.

Vocalizations

Peregrine Falcons are not as constantly vocal as some raptors, but they have a set of sharp, penetrating calls. The most characteristic is a loud, repeated series of harsh notes often rendered as “kek-kek-kek-kek,” given in alarm or territorial defense, especially near nests.

They also use shorter, sharp “kek” or “kiik” notes at close range for communication between mates and between adults and young. At nest sites, calls can be frequent and intense when intruders appear or during food deliveries to fledglings perched on cliffs or ledges. Away from nesting territories, they are usually quieter, with calls heard mainly during close interactions.

Distribution

Breeding Range

Peregrine Falcons have one of the broadest breeding distributions of any bird of prey, occurring on every continent except Antarctica. In North America, they breed from high Arctic regions south through much of Canada and the United States, wherever suitable nesting sites and abundant prey are available.

Traditional nest sites are cliffs and rock ledges overlooking open country, coasts, or wetlands. In recent decades, many Peregrines have also adopted tall human-made structures—skyscrapers, towers, bridges, smokestacks—as surrogate cliffs, particularly in cities and along major rivers and coasts.

Non-breeding / Winter Range

Many northern breeders migrate southward for the winter, wintering throughout much of the United States, Mexico, Central America, and into South America. Some individuals undertake very long-distance migrations, traveling from Arctic breeding sites to temperate or even tropical wintering grounds.

In milder regions, including many coastal and urban areas, Peregrines can be year-round residents, using the same cliffs or buildings for nesting and winter roosting. Coastal shorelines, estuaries, large lakes, and urban centers with abundant bird prey become important wintering areas.

Migration

Peregrine Falcons are partial to long-distance migrants, depending on subspecies and latitude. Arctic and far northern birds are strongly migratory, moving thousands of kilometers between breeding and wintering grounds, while some temperate and urban populations may be mostly resident.

Migration generally occurs along coasts, mountain ranges, and major river systems, though many birds travel across broad fronts. Peregrines migrate primarily by day, often moving high overhead or following leading lines such as shorelines and ridgelines. They are regular features at raptor migration watch sites, where they pass by in small numbers but with unmistakable speed and streamlined silhouettes.

Habitat

Peregrine Falcons require two key habitat elements: elevated nest sites and abundant bird prey. Historically, they nested on cliffs, escarpments, canyon walls, and sea stacks, especially those overlooking open water, tundra, grasslands, or wetlands.

In the modern era, many have colonized cities, nesting on tall buildings, bridges, and towers that mimic cliff ledges. They also use quarries, bridges over large rivers, and tall, isolated structures in industrial or port areas.

For hunting, they favor open habitats where aerial pursuits are most effective: coasts, marshes, mudflats, river valleys, grasslands, agricultural fields, and open urban spaces. In cities, they exploit flocks of pigeons, starlings, and other urban birds, often hunting along riverfronts, parks, and near concentrations of roosting or feeding birds.

Behavior

General

Peregrine Falcons are highly aerial predators. They spend much of their time perched on high vantage points—cliff ledges, building corners, bridge girders, tall snags—from which they watch for potential prey. When hunting, they use their powerful flight to pursue birds in midair, often climbing to height and then stooping at tremendous speed.

They are typically solitary outside the breeding season, though pairs maintain territories year-round in some regions and may roost near each other. Their flight is strong and efficient, with rapid, deep wingbeats and swift glides, and they are capable of remarkable agility and acceleration.

Breeding

Breeding Peregrines are strongly territorial around nest sites. Courtship begins in late winter or early spring and includes spectacular aerial displays: high circling flights, steep dives, and acrobatic chases between members of a pair. The male often performs steep stoops and looping flights, sometimes carrying prey, which he may offer to the female as a gift.

Pairs reaffirm bonds with bowing displays at nest ledges, mutual calling, and close perched interactions. Peregrines are generally monogamous, and many pairs remain together for multiple seasons, reusing traditional nesting territories year after year if successful.

Nesting

Peregrine Falcons do not build elaborate nests. Instead, they use a simple scrape—a shallow depression in gravel, soil, or loose substrate on a cliff ledge, building balcony, or bridge. On natural cliffs, the scrape may be on a sheltered ledge, in a recess, or on a small cave floor. On human-made structures, they often use protected corners, balconies, or nest boxes filled with gravel.

The female typically lays 3–4, occasionally more, buffy eggs marked with reddish-brown. Both sexes incubate, but the female does the bulk of the incubation while the male provides most of the food. Incubation usually lasts just over a month.

After hatching, chicks are covered in white down and remain at the scrape, where both parents feed them. As they grow, they begin to toddle around the ledge, strengthening their legs and wings. Fledging occurs after several weeks, with young birds making their first flights from the nest ledge to nearby perches. Parents continue to feed and train fledglings for weeks, teaching them to chase, catch, and handle prey.

Foraging

Peregrine Falcons are specialized bird hunters. Their diet is dominated by medium-sized birds—shorebirds, ducks, pigeons, doves, shorebirds, and various songbirds—though they will occasionally take bats and other small vertebrates.

Their signature hunting technique is the stoop: the falcon climbs high above or to one side of its prey, then folds its wings and dives steeply, reaching extreme speeds. Just before impact, it may partially spread its wings and strike prey with its talons or body, stunning or killing it. The falcon then catches the falling bird in midair or retrieves it from the ground or water.

They also hunt with fast level chases, surprising birds flushed from flocks or from ground and water roosts. Over cities, they frequently target pigeons and other abundant birds, using building corners and wind currents to approach unseen before launching attacks.

Conservation Status

Peregrine Falcons suffered dramatic declines in the mid-20th century due to widespread use of organochlorine pesticides, especially DDT, which caused eggshell thinning and reproductive failure. In many regions, they nearly disappeared as breeders. Intensive conservation efforts—including bans on DDT, captive-breeding programs, and reintroductions to suitable cliff and urban sites—have led to a remarkable recovery in much of North America.

In many areas they are now considered stable or increasing and have been removed from some endangered species lists, though they remain closely monitored. Ongoing threats include environmental contaminants, collisions with structures, and local disturbance at nest sites, but overall the species is widely regarded as a major conservation success story where protective measures have been maintained. Maintaining healthy prey populations, minimizing contaminants, and protecting key nesting sites remain important for their long-term security.