Species Profile
House Finch
Haemorhous mexicanus
Quick Facts
Conservation
LCLeast ConcernLifespan
10–12 years
Length
12.5–15 cm
Weight
16–27 g
Wingspan
20–25 cm
Migration
Resident
Also known as: Hollywood Finch, Linnet
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Appearance
The House Finch is a small, sparrow-sized bird with a stout beak and a slightly notched tail. Males display vibrant red on their head, breast, and rump, contrasting with brown-streaked backs and wings.
Females and juveniles lack red coloration and instead show overall brown plumage with streaked underparts. Both sexes have pale wing bars and a slightly curved culmen on their beaks.
Identification & Characteristics
Male Colors
- Primary
- Red
- Secondary
- White
- Beak
- Grey
- Legs
- Brown
Female Colors
- Primary
- Brown
- Secondary
- White
- Beak
- Grey
- Legs
- Brown
Male Markings
Red forehead, throat and breast in males
Tail: Short and notched
Female Markings
Streaked breast and belly
Tail: Short and notched
Attributes
Understanding Attributes
Rated 0–100 based on research and observation. A score of 50 is average across all bird species. These attributes are relative and don't necessarily indicate superiority.
Habitat & Distribution
Originally native to western North America, House Finches have successfully expanded across the continent and can now be found in most of the United States and southern Canada. They thrive in urban and suburban environments, including parks, gardens, and farmlands.
In the eastern U.S., they were introduced in the 1940s and have since become widespread. These adaptable birds are year-round residents in most of their range, with some northern populations showing short-distance migration.
Distribution
Diet
House Finches are primarily vegetarian, feeding on various seeds, buds, and fruits. They have a particular fondness for sunflower seeds and readily visit bird feeders.
In spring and summer, they supplement their diet with some insects, especially when feeding young.
Behaviour
House Finches are highly social, often seen in flocks at feeders or perched on wires. They exhibit a bouncy flight pattern and are known for their habit of 'billing,' where pairs touch or clasp beaks as a sign of affection. These birds are also frequent bathers, enjoying shallow water sources in gardens and parks.
Calls & Sounds
The House Finch's song is a cheerful, warbling melody that rises and falls in pitch. Males sing throughout the year, with increased frequency during the breeding season. Their call is a sharp 'cheep' or 'wheat,' often given in flight or when alarmed. Flocks communicate with soft, chattering notes.
Nesting & Breeding
House Finches form monogamous pairs and begin breeding in spring. Males court females with songs and displays, often offering food as part of the courtship ritual.
Nests are cup-shaped structures made of twigs, grasses, and leaves, typically placed in trees, shrubs, or on man-made structures. Females lay 3-6 pale blue eggs with small black spots.
Incubation lasts about 13-14 days, and it is performed solely by the female. Both parents feed the nestlings, which fledge after 12-15 days. Pairs often produce multiple broods in a season.
Conservation
While the House Finch is not currently of conservation concern, it has faced challenges such as the outbreak of mycoplasmal conjunctivitis in the 1990s. Ongoing monitoring is crucial to detect any population changes. Providing clean feeders and native plants in gardens can support local populations.
Population
Estimated: 40,000,000 mature individuals[3]
Trend: Increasing[2]
Population increasing due to adaptation to human environments
Elevation
Sea level to 3,000 meters
Additional Details
- Egg size:
- Approximately 2cm x 1.5cm
- Predators:
- House Finches face predation from domestic cats, hawks, owls, and occasionally snakes, especially for eggs and nestlings.
- Alarm calls:
- Sharp cheeps
- Breeding age:
- 1
- Maturity age:
- 1
- Feeding times:
- Throughout the day
- Major threats:
- Habitat loss, disease
- Parental care:
- Both parents feed chicks, females incubate the eggs and males will feed the female
- Primary calls:
- Warbled song
- Social habits:
- Social, often found in large flocks
- Egg appearance:
- Small, pale blue-green with few black spots
- Feeding habits:
- Feeds in trees, shrubs, and on the ground
- Breeding season:
- April to August
- Diet variations:
- Supplements diet with insects during breeding season
- Fledging period:
- Approximately 2 weeks
- Average lifespan:
- 7
- Call description:
- Variety of chirps and trills, often repetitive
- Daily activities:
- Active during the day, roosting in trees at night
- Nesting location:
- In trees, shrubs, or on buildings
- Number of broods:
- Up to three, sometimes more
- Incubation period:
- Around 14 days
- Nest construction:
- Loose, open cup of twigs and grasses
- Migration patterns:
- Non-migratory
- Migratory patterns:
- Resident throughout its range
- Age related changes:
- Males develop brighter plumage with age
- Prey capture method:
- Picking
- Conservation efforts:
- Protected under the Migratory Bird Treaty Act
- Territorial behavior:
- Defends nesting sites
- Reproductive behavior:
- Monogamous
- Special dietary needs:
- None known
- Clutch characteristics:
- 2-7 eggs
- Interaction with other species:
- Mixed with other finch species
Birdwatching Tips
- Look for House Finches at backyard feeders, especially those offering sunflower seeds.
- Listen for their cheerful, warbling song, often delivered from exposed perches.
- Observe urban areas, as these birds thrive in human-modified environments.
- Check fruiting trees and shrubs, where they often feed in small groups.
Did You Know?
- House Finches can see and distinguish ultraviolet light, which may play a role in mate selection.
- The red coloration in males comes from pigments in their diet, primarily from berries and fruits.
- These birds were originally sold as pets under the name 'Hollywood Finches' before being released in New York in the 1940s.
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