Gray-crowned Rosy-Finch

About

The Gray-crowned Rosy-Finch is a medium-sized, hardy passerine bird adapted to cold, high-altitude environments. It is known for its distinctive gray crown and rosy pink plumage on its underparts and wings, which varies in intensity among subspecies and sexes. These birds are often found in large flocks, especially outside the breeding season, foraging for seeds and insects in alpine and subalpine habitats.

Size & lifespan

Length

14-18 cm (5.5-7.1 in)

Wingspan

28-33 cm (11-13 in)

Weight

22-60 g (0.78-2.12 oz)

Lifespan

Typically 3-5 years in the wild, with records up to 9 years.

Diet

Omnivore, primarily granivorous and insectivorous.

Physical characteristics

Plumage

Adults have a distinctive gray crown and nape, contrasting with a black forehead and lores. The body is largely dark brown, with rosy pink wash on the belly, flanks, rump, and wing coverts. The wings and tail are dark, often with pinkish edges to the feathers. The intensity of the pink varies geographically and individually.

Beak shape

Small, conical, and pointed, adapted for seed eating. Color is typically black during breeding season, becoming yellowish with a dark tip in winter.

Eye color

Dark brown.

Leg color

Dark gray to black.

Distinguishing features

The gray crown is the most defining feature, along with the rosy pink wash on the underparts and wings. The black forehead and lores create a mask-like appearance.

Juvenile appearance

Juveniles are duller overall, lacking the distinct gray crown and rosy pink plumage. They are mostly brownish-gray with streaking on the underparts. The bill is yellowish with a dark tip. They gradually acquire adult plumage over their first year.

Seasonal changes

Plumage remains largely consistent year-round, though the bill color changes from black in breeding season to yellowish with a dark tip in winter. The rosy coloration may appear slightly brighter in breeding plumage due to feather wear and less dulling from feather tips.

Sexual dimorphism

Males are generally brighter and more extensively rosy pink than females, especially during the breeding season. The gray on the crown may also be more extensive and purer in males. Females tend to be duller with less intense pink coloration.

How to identify

1. 1

   Gray Crown

   Look for the distinct gray cap on the head, contrasting with a black forehead and dark brown body. This is the most reliable field mark.

2. 2

   Rosy Pink Plumage

   Observe the rosy pink wash on the belly, flanks, rump, and wing coverts. The intensity varies, but it's usually present to some degree, especially in males.

3. 3

   Habitat and Behavior

   These birds are almost exclusively found in high-alpine, rocky, and often snowy environments. Look for them foraging on the ground, often in flocks, near snowfields or cliffs. Their hardiness in extreme cold is a clue.

4. 4

   Bill Color

   Note the bill color: black during breeding (summer) and yellowish with a dark tip during winter. This can help with seasonal identification.

5. 5

   Flight Pattern

   Watch for their strong, undulating flight, often in tight, cohesive flocks.

Habitat & range

Biomes

Alpine tundra, subalpine meadows, rocky slopes, glaciers, snowfields, and high-elevation coniferous forests.

Geographic range

Western North America, from Alaska and western Canada south through the Rocky Mountains to the Sierra Nevada in California. Also found in parts of eastern Siberia and the Aleutian Islands.

Elevation range

Breeds at very high elevations, typically above treeline (2,000-4,000 meters or 6,500-13,000 feet). In winter, they descend to lower elevations, but still often remain in mountainous areas, sometimes visiting feeders in foothills.

Preferred environments

Open, barren, rocky areas with sparse vegetation, often near permanent snowfields or glaciers. They require cliffs or rock crevices for nesting. In winter, they can be found in more sheltered valleys, canyons, and sometimes urban areas with feeders.

Behavior

Activity time

Diurnal.

Feeding habits

Primarily ground foragers, often seen hopping or running across snowfields and rocky terrain. They feed on seeds of alpine plants, insects (especially those trapped on snowfields), and sometimes nectar. They are adept at gleaning seeds from low vegetation and cracks in rocks. In winter, they readily visit bird feeders, especially those offering black oil sunflower seeds.

Social behavior

Highly social, especially outside the breeding season, forming large, often mixed-species flocks (sometimes with other rosy-finch species). During breeding, they are more territorial but still often nest in loose colonies.

Flight pattern

Strong, undulating flight, often in tight flocks. They are agile fliers, capable of navigating strong winds in their high-altitude habitats.

Migration pattern

Altitudinal migrant, moving from high-elevation breeding grounds to lower elevations in winter. Some northern populations may undertake longer-distance migrations south. Their movements are often dictated by snow depth and food availability.

Territoriality

During the breeding season, males defend a small territory around the nest site, primarily against other males of the same species. Flocks are non-territorial outside of breeding.

Breeding & reproduction

Breeding season

Late May to August, peaking in June and July.

Nesting habits

Nests are typically built in sheltered crevices or cavities on cliffs, rock faces, or under boulders, often near snowfields. The nest is a bulky cup made of grass, moss, lichens, and twigs, lined with fine grasses, hair, and feathers.

Clutch size

3-5 eggs, most commonly 4.

Egg description

3-5 eggs, typically white or pale bluish-white, sometimes with fine reddish-brown speckles, especially at the larger end. Eggs are oval-shaped.

Incubation period

12-14 days, primarily by the female.

Fledging period

14-20 days after hatching. Young are fed by both parents.

Parental care

Both parents participate in feeding the nestlings and fledglings. The female primarily incubates, while the male brings food to the female and later to the young.

Where to find

Field tips

1. Scan Snowfields. Rosy-finches frequently forage on snowfields for insects trapped in the snow. A scope can be very useful for spotting them from a distance.
2. Look for Flocks. Outside the breeding season, they are almost always in flocks. Look for movement on the ground or listen for their calls to locate a flock.
3. Visit Feeders in Winter. In areas where they winter at lower elevations, check bird feeders, especially those offering black oil sunflower seeds, during cold weather.
4. Be Patient and Dress Warmly. Their habitat is often remote and exposed. Be prepared for cold, windy conditions and be patient, as they can be inconspicuous against rocky backgrounds.
5. Listen for Calls. Their distinctive 'chew' or 'chip' calls can often alert you to their presence before you see them.

Similar species

Quick facts

Habitat:

Alpine tundra, rocky slopes, glaciers

Diet:

Seeds, insects, nectar

Sociality:

Highly social, forms large flocks

Migration:

Altitudinal migrant

Distinguishing Mark:

Gray crown, rosy pink wash

Fun facts

• Gray-crowned Rosy-Finches are among the highest-nesting birds in North America, often breeding at elevations over 10,000 feet (3,000 meters).
• They are incredibly hardy and well-adapted to extreme cold, with specialized blood chemistry and feather insulation that allows them to survive temperatures far below freezing.
• These birds are known to forage on glaciers and snowfields, picking insects that have been blown up from lower elevations and become trapped in the snow.
• There are several recognized subspecies of Gray-crowned Rosy-Finch, some of which show significant variation in the extent and intensity of their gray and rosy plumage, leading to past taxonomic debates about species status for some forms.
• They often form mixed flocks with Black Rosy-Finches and Brown-capped Rosy-Finches in areas where their ranges overlap, especially in winter.

Scientific classification

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Passeriformes

Family

Fringillidae

Genus

Leucosticte

Species

Leucosticte tephrocotis

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