Band-Tailed Pigeon

En bref

Migratrice

• Scientific Name: Patagioenas fasciata
• Spanish Name: Paloma collareja
• Family: Columbidae
• Known Nicknames: White-collared pigeon, Wild pigeon
• Average Length: 33–40 cm / 13–16 in
• Average Weight: 250–450 g / 8.8–15.9 oz
• Wingspan: 63–66 cm / 25–26 in
• Key Feature: Broad gray band at the end of the tail and white crescent on the nape
• Primary Diet: Herbivore (Frugivore and Granivore)
• Range: Western North America from British Columbia to Mexico, and Central to South America
• Habitat: Coniferous and mixed forests, oak woodlands, and montane forests
• Social Structure: Highly Social (Flocks)
• Nesting/Breeding: Tree platforms (Conifers and Oaks)
• Statut de conservation : Préoccupation mineure (LC)
• Évolution démographique : En baisse

The Band-Tailed Pigeon (*Patagioenas fasciata*) is a majestic forest-dweller of western North America, distinguished as the continent’s largest native pigeon and a close relative of the extinct Passenger Pigeon. Boasting a sophisticated palette, its plumage is primarily a soft lead-gray with a subtle purplish-pink wash on the breast, accented by a striking bright yellow bill and matching yellow feet. Its most defining features include a shimmering iridescent green patch on the hindneck topped with a crisp white crescent "collar," and the signature wide, pale gray band at the tip of its long tail that gives the species its name. Highly social and nomadic, these birds are often seen in large flocks performing powerful, direct flights through oak and evergreen canopies in search of acorns and berries, making them a vital and charismatic presence in their montane habitats.

Faits amusants

These birds are remarkably acrobatic, frequently hanging completely upside down to snag berries or acorns from thin branches. They possess the rare ability among birds to suck up water continuously without tilting their heads back to swallow, and they often gather in large numbers at mineral springs to ingest essential salts. Perhaps most unusual is their vocalization; instead of typical cooing, they produce a low, rhythmic hoot that is frequently mistaken for the call of a Great Horned Owl. Unlike many other bird species, both parents produce "crop milk," a protein-rich secretion used to nourish their single chick.

Habitats et répartition

This species is primarily found along the Pacific Coast of North America, extending from southern British Columbia through the western United States and Mexico into Central and South America. In the northern parts of its range, populations are typically migratory, moving to warmer climates for the winter, while those residing in Mexico and the southern highlands are often permanent residents.

It inhabits a variety of wooded environments, showing a strong preference for coniferous and mixed-evergreen forests, particularly those containing oak, madrone, and various berry-producing shrubs. These birds are most commonly found in mountainous regions and foothills, often ranging from sea level up to high elevations where they utilize dense forest canopies for nesting and nearby open areas for foraging on nuts and fruits.

Comportements & Reproduction

Highly gregarious outside the breeding season, these birds form large nomadic flocks that travel extensively to forage for acorns, berries, and nuts. During the nesting period, they transition to a more territorial and solitary lifestyle. They are primarily monogamous, with males performing courtship displays that include circular gliding flights and rhythmic wing-clapping. Their social structure is notably influenced by the availability of mineral springs and salt licks, which they visit in groups to supplement their specialized diet.

Reproduction is characterized by a low biological rate, as females typically lay only a single egg per clutch, though they may produce multiple broods annually if food is abundant. Nests are often flimsy, precarious platforms of sticks placed high in the canopy of coniferous or deciduous trees. A unique reproductive strategy is the production of "crop milk," a protein-rich secretion from the lining of the esophagus that both parents feed to the young. This highly nutritious substance allows the chick to develop rapidly, compensating for the small clutch size.

Alimentation

The Band-Tailed Pigeon is primarily a herbivore with a diet centered on seeds, nuts, and a wide variety of wild fruits. Acorns serve as a critical food source, and remarkably, these birds swallow them entirely whole, relying on a powerful, muscular gizzard to grind down the tough shells. They also consume various berries such as elderberry, cascara, madrone, and wild cherry, along with leaf buds and flowers during the spring months. An interesting physiological adaptation is their exceptionally large crop, which allows them to gather and store a significant volume of food rapidly before retreating to the safety of dense foliage to digest. Furthermore, these pigeons are known to seek out mineral springs or salt licks to ingest sodium and calcium, a behavior that is particularly common during the nesting season to supplement their nutritional needs. Because they rely on seasonal mast crops, their movements are often nomadic, with large flocks traveling extensively to track the ripening of different food sources across various elevations.

Couleurs

The Band-Tailed Pigeon features muted blue-gray plumage with a purplish wash on the head and breast, accented by a distinct white crescent and iridescent green patch on the nape. It is characterized by a yellow bill with a black tip, yellow legs, and a signature broad, pale gray band across the end of its dark tail. These subtle, earthy tones provide excellent camouflage among the shadows and foliage of coniferous and oak forest canopies.