Cathartidae (New World Vultures)

Cathartidae (New World Vultures)

Cathartidae is a family of large scavenging birds commonly known as New World vultures. Members of this family are recognized by a combination of long soaring wings, small bare heads, hooked bills, and specialized scavenging behavior.

They are most often associated with open country, roadsides, fields, river corridors, farms, woodland edges, and other landscapes where carrion may be available, where they may be seen circling overhead, rocking in a shallow glide, feeding on carrion, or perched in trees near feeding or roosting areas.

In the field, they are frequently identified by shape, movement, habitat, and flight style as much as by plumage.

Orientation

These notes emphasize field recognition, behavior, and comparison across species, rather than a complete taxonomic treatment.

General Characteristics

• Size: Large birds, generally larger than most hawks but lighter and less powerful-looking than eagles
• Bill: Pale or dark hooked bill adapted for feeding on carrion
• Plumage: Mostly dark brown to blackish; adults may show bare red, orange, yellow, or dark head coloration depending on species
• Voice: Generally quiet in open field conditions; vocalizations are limited and usually heard only at close range
• Flight: Long-winged soaring flight, often with little flapping and strong use of thermals

Habitat and Range

Members of this family are most often encountered in:

• Open country, fields, and agricultural landscapes
• Roadsides, shorelines, river corridors, and wetland edges
• Woodland edges, roost trees, farms, and rural transition zones

Seasonal patterns may include:

• Breeding or warm-season presence in northern areas
• Migration or seasonal movement depending on region
• Roosting behavior in groups or loose gatherings

Birds are often detected first by soaring flight, circling movement, or silhouette, especially when they are high overhead or backlit.

Field Recognition

Key features for identifying this family:

• Shape: Large dark birds with long wings, small heads, and broad soaring profiles
• Bill: Hooked, but usually less heavy-looking than the bills of eagles or many hawks
• Plumage: Dark overall; underwing contrast may be visible in flight depending on species and light
• Movement: Slow circling, gliding, and rocking flight rather than rapid flapping
• Voice: Usually silent during ordinary field observation
• Behavior: Scavenging, soaring over broad areas, gathering near carrion, and roosting in trees or sheltered structures

In many cases, flight style and silhouette are more reliable than color alone, especially when the bird is distant, high overhead, or seen only briefly.

Movement and Flight

• Flight: Efficient soaring with long wings; many observations begin with a bird circling in open sky
• Perching: Often hunched or awkward-looking, with folded wings, a small bare head, and heavy body posture
• Foraging: Searches broadly for carrion, often by soaring over fields, roadsides, shorelines, and wooded edges
• Display: Flight posture, circling, and group movement may be more noticeable than vocal or visual display behavior

Movement patterns are often diagnostic and can allow identification before plumage details are visible.

Similar Families

This family may be confused with:

• Accipitridae: Hawks, eagles, and kites may also soar, but usually show different wing posture, steadier flight, stronger heads, and more active hunting behavior.
• Pandionidae: Osprey may be seen circling or gliding near water, but shows pale underparts, long angled wings, and active fish-hunting behavior rather than scavenging.
• Large corvids: Crows and ravens may feed on carrion, but are smaller, more vocal, more direct in flight, and lack the long-winged soaring profile of vultures.

Distinction is often based on structure, behavior, and flight style, rather than plumage alone.

Species

Cathartes aura (Turkey Vulture)

A large dark scavenger most often recognized by long wings held in a shallow V, rocking soaring flight, and a small bare red head in adults. In Minnesota, Turkey Vulture is the expected and familiar representative of this family, especially during the warmer months.

Notes

• Seasonality: In Minnesota, Turkey Vulture is most often associated with spring through fall observations, when soaring birds become common over open landscapes.
• Field mark reminder: The shallow V-shaped wing posture and rocking glide are often more visible than the red head.
• Photographic note: Perched birds can reveal details that distant flight views often miss, including the bare head, pale bill, hunched posture, and layered dark brown plumage.
• Ecological role: New World vultures are important scavengers, removing carrion from the landscape and connecting open-country movement with woodland roosting and sheltered feeding sites.

References

• Cornell Lab of Ornithology – All About Birds
  https://www.allaboutbirds.org

• eBird
  https://ebird.org

• Birds of the World / regional atlas as needed
  https://birdsoftheworld.org