House finch | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Fringillidae |
Subfamily: | Carduelinae |
Genus: | Haemorhous |
Species: | H. mexicanus |
Binomial name | |
Haemorhous mexicanus (Müller, 1776) | |
Range of H. mexicanus Breeding range Year-round range | |
Synonyms | |
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The house finch (Haemorhous mexicanus) is a North American bird in the finch family. It is native to Mexico and southwestern United States, but has since been introduced to the eastern part of North America and Hawaii; it is now found year-round in all parts of the United States and most of Mexico, with some residing near the border of Canada. There are estimated to be 40 million house finches across North America, making it the second-most populous finch, just behind the American goldfinch. The house finch and the other two American rosefinches (Cassin's and purple finch) are placed in the genus Haemorhous.
The house finch is a moderate-sized finch, 12.5 to 15 cm (5 to 6 in) long, with a wingspan of 20 to 25 cm (8 to 10 in). Body mass can vary from 16 to 27 g (9⁄16 to 15⁄16 oz), with an average weight of 21 g (3⁄4 oz). Among standard measurements, the wing chord is 7 to 8.4 cm (2+3⁄4 to 3+1⁄4 in), the tail is 5.7 to 6.5 cm (2+1⁄4 to 2+1⁄2 in), the culmen is 0.9 to 1.1 cm (3⁄8 to 7⁄16 in) and the tarsus is 1.6 to 1.8 cm (5⁄8 to 11⁄16 in). [2]
Adults have a long, square-tipped brown tail and are a brown or dull-brown color across the back with some shading into deep gray on the wing feathers. Breast and belly feathers may be streaked; the flanks usually are. In most cases, adult males' heads, necks and shoulders are reddish. [3] [4] This color sometimes extends to the belly and down the back, between the wings. Male coloration varies in intensity with the seasons [5] and is derived from the berries and fruits in its diet. [6] As a result, the colors range from pale straw-yellow through bright orange (both rare) to deep, intense red. Adult females have brown upperparts and streaked underparts.
The house finch's songs typically consist of a series of high-pitched musical jumbles ending with a distinct high note, wheer. Calls from flight include a soft cheet or wheat, with perched birds giving a more drawn-out version. [2] [7]
House finches are mainly permanent residents throughout their range, some birds migrate to the south, with adult females moving longer distances than males. [8] [2] Their breeding habitat is urban and suburban areas across North America, as well as various semi-open areas in the west from southern Canada to the Mexican state of Oaxaca; the population in central Chiapas may be descended from escaped cagebirds. [4] Analyses of nest records from house finches in California spanning more than a century found that egg‐laying occurred significantly earlier in warmer springs. [9]
Originally only a resident of Mexico and the southwestern United States, house finches were introduced to eastern North America in the 1940s. The birds were sold illegally in New York City [6] as "Hollywood finches", a marketing artifice. [5] To avoid prosecution under the Migratory Bird Treaty Act of 1918, vendors and owners released the birds. They have since become naturalized; in largely unforested land across the eastern U.S. they have displaced the native purple finch and even the non-native house sparrow. [10] Sometime in the 19th century, they were introduced to Hawaii and are now abundant on all its major islands. [11]
According to the Partners in Flight database, there are estimated to be 40 million house finches across North America. [12]
Instances of naturalization originating in escapes or releases of cage birds have been recorded in Europe, such as in 2020 in Murcia, (Spain). [13]
House finches forage on the ground or in vegetation normally. They primarily eat grains, seeds and berries, being voracious consumers of weed seeds such as nettle and dandelion; [14] included are incidental small insects such as aphids. They are frequent visitors to bird feeders throughout the year, particularly if stocked with sunflower or nyjer seed, and will congregate at hanging nyjer sock feeders. The house finch is known to damage orchard fruit and consume commercially grown grain, but is generally considered an annoyance rather than a significant pest. [15]
Nests are made in cavities, including openings in buildings, hanging plants, and other cup-shaped outdoor decorations. Sometimes nests abandoned by other birds are used. Nests may be re-used for subsequent broods or in following years. The nest is built by the female, sometimes in as little as two days. [16] It is well made of twigs and debris, forming a cup shape, usually 1.8 to 2.7 m (5 ft 11 in to 8 ft 10 in) above the ground. [16]
During courtship, the male will touch bills with the female. He may then present the female with choice bits of food, and if she mimics the behavior of a hungry chick, he may feed her. The male also feeds the female during breeding and incubation of the eggs, and raising of the young, [17] and the male is the primary feeder of the fledglings (who can be differentiated from the females by the pin feathers remaining on their heads). Females are typically attracted to the males with the deepest pigment of red to their head, more so than the occasional orange or yellowish-headed males that sometimes occur. [6]
The female lays clutches of eggs from February through August, two or more broods per year with 2 to 6 eggs per brood, most commonly 4 or 5. The egg laying usually takes place in the morning, at one egg per day. [17] The eggs are pale bluish-green with few black spots and a smooth, somewhat glossy surface. In response to mite infestation, which has a more deleterious effect on male chicks than on females, the mother finch may lay eggs containing females first, to reduce the length of time male chicks are exposed to mites. This strategy increases the likelihood that representative numbers of both sexes will survive. [18] The female incubates the eggs for 12 to 14 days. Shortly after hatching, she removes the empty eggshells from the nest. [19] [20] The hatchlings are pink with closed eyes and tufts of fluffy down. [21] The female always feeds the young. The male usually joins in. [17] The young are silent for the first seven or eight days, and subsequently start peeping during feedings. [16] Initially, the mother carries fecal sacs out of the nest, but when the young become older, she no longer carries them all away, allowing droppings to accumulate around the edge of the nest. [16] Before flying, the young often climb into adjacent plants and usually fledge at about 11 to 19 days after hatching. [16] Dandelion seeds are among the preferred seeds for the young. [19] Contrary to the way most birds, even ones with herbivorous leanings as adults, tend to feed their nestlings animal matter to give them the protein necessary to grow, house finches are one of the few birds who feed their young only plant matter. [6]
House finches are aggressive enough to drive other birds away from places such as feeders. [22]
The house finch may be infected by several parasites including Plasmodium relictum [23] and Mycoplasma gallisepticum , which caused the population of house finches in eastern North America to crash during the 1990s. [24]
The mite Pellonyssus reedi is often found on house finch nestlings, particularly for nests later in the season. [25]
The brown-headed cowbird, a brood parasite, will lay its eggs in house finch nests, although the diet house finches feed their young is inadequate for the young cowbirds, which rarely survive. [26]
In 2012, house finches positive for West Nile virus were found in northwestern Riverside County, CA. [27]
The American goldfinch is a small North American bird in the finch family. It is migratory, ranging from mid-Alberta to North Carolina during the breeding season, and from just south of the Canada–United States border to Mexico during the winter.
The northern cardinal, known colloquially as the common cardinal, red cardinal, or just cardinal, is a bird in the genus Cardinalis. It can be found in southeastern Canada, through the eastern United States from Maine to Minnesota to Texas, New Mexico, southern Arizona, southern California and south through Mexico, Belize, and Guatemala. It is also an introduced species in a few locations such as Bermuda and all major islands of Hawaii since its introduction in 1929. Its habitat includes woodlands, gardens, shrublands, and wetlands. It is the state bird of Illinois, Indiana, Kentucky, North Carolina, Ohio, Virginia, and West Virginia.
The tree swallow is a migratory bird of the family Hirundinidae. Found in the Americas, the tree swallow was first described in 1807 by French ornithologist Louis Vieillot as Hirundo bicolor. It has since been moved to its current genus, Tachycineta, within which its phylogenetic placement is debated. The tree swallow has glossy blue-green upperparts, with the exception of the blackish wings and tail, and white underparts. The bill is black, the eyes dark brown, and the legs and feet pale brown. The female is generally duller than the male, and the first-year female has mostly brown upperparts, with some blue feathers. Juveniles have brown upperparts, and gray-brown-washed breasts. The tree swallow breeds in the US and Canada. It winters along southern US coasts south, along the Gulf Coast, to Panama and the northwestern coast of South America, and in the West Indies.
Cassin's finch is a bird in the finch family, Fringillidae. This species and the other "American rosefinches" are placed in the genus Haemorhous.
The rose-breasted grosbeak, colloquially called "cut-throat" due to its coloration, is a large, seed-eating grosbeak in the cardinal family (Cardinalidae). It is primarily a foliage gleaner. Males have black heads, wings, backs, and tails, and a bright rose colored patch on their white breast. Males and females exhibit marked sexual dimorphism.
The brown-headed cowbird is a small, obligate brood parasitic icterid native to temperate and subtropical North America. It is a permanent resident in the southern parts of its range; northern birds migrate to the southern United States and Mexico in winter, returning to their summer habitat around March or April.
The hooded oriole is a medium-sized New World oriole. The male of this species ranges in color from a bright orange to a paler yellow, with a black back, face, tail and bib, with the wing containing two white bars. The female is more of an olive color with some yellow accents.
The scarlet tanager is a medium-sized American songbird. Until recently, it was placed in the tanager family (Thraupidae), but it and other members of its genus are now classified as belonging to the cardinal family (Cardinalidae). The species' plumage and vocalizations are similar to other members of the cardinal family, although the Piranga species lacks the thick conical bill that many cardinals possess. The species resides in thick deciduous woodlands and suburbs.
The veery is a small North American thrush species, a member of a group of closely related and similar species in the genus Catharus, also including the gray-cheeked thrush, Bicknell's thrush, Swainson's thrush, and hermit thrush. Alternate names for this species include Wilson's thrush and tawny thrush. Up to six subspecies exist, which are grouped into the eastern veery, the western veery or willow thrush, and the Newfoundland veery.
The yellow warbler is a New World warbler species. Yellow warblers are the most widespread species in the diverse genus Setophaga, breeding in almost the whole of North America, the Caribbean, as well as northern South America.
The grasshopper sparrow is a small New World sparrow. It belongs to the genus Ammodramus, which contains three species that inhabit grasslands and prairies. Grasshopper sparrows are sometimes found in crop fields and they will readily colonize reclaimed grassland. In the core of their range, grasshopper sparrows are dependent upon large areas of grassland where they avoid trees and shrubs. They seek out heterogenous patches of prairie that contain clumps of dead grass or other vegetation where they conceal their nest, and also contain barer ground where they forage for insects, spiders, and seeds. Grasshopper sparrows are unusual among New World sparrows in that they sing two distinct song types, the prevalence of which varies with the nesting cycle. The primary male song, a high trill preceded by a stereotyped series of short chips, is reminiscent of the sounds of grasshoppers and is the origin of this species' name. Like some other birds of the central North American grasslands, this species also moves around a lot, not only via annual migrations, but individuals frequently disperse between breeding attempts or breeding seasons. Grasshopper sparrows are in steep decline across their range, even in the core of the breeding distribution in the tallgrass prairies of the central Great Plains. The Florida grasshopper sparrow is highly endangered.
The Carolina wren is a common species of wren that is a resident in the Eastern United States, the extreme south of Ontario, Canada, and the extreme northeast of Mexico. Severe winters restrict the northern limits of their range, while favorable weather conditions lead to a northward extension of their breeding range. Their preferred habitat is in dense cover in forest, farm edges, and suburban areas. This wren is the state bird of South Carolina.
Brood parasitism is a subclass of parasitism and phenomenon and behavioural pattern of animals that rely on others to raise their young. The strategy appears among birds, insects and fish. The brood parasite manipulates a host, either of the same or of another species, to raise its young as if it were its own, usually using egg mimicry, with eggs that resemble the host's. The strategy involves a form of aggressive mimicry called Kirbyan mimicry.
The painted bunting is a species of bird in the cardinal family, Cardinalidae. It is native to North America. The bright plumage of the male only comes in the second year of life; in the first year they can only be distinguished from the female by close inspection.
The giant cowbird is a large passerine bird in the New World family Icteridae. It breeds from southern Mexico south to northern Argentina, and on Trinidad and Tobago. It may have relatively recently colonised the latter island. It is a brood parasite and lays its eggs in the nests of other birds.
The shiny cowbird is a passerine bird in the New World family Icteridae. It breeds in most of South America except for dense forests and areas of high altitude such as mountains. Since 1900 the shiny cowbird's range has shifted northward, and it was recorded in the Caribbean islands as well as the United States, where it is found breeding in southern Florida. It is a bird associated with open habitats, including disturbed land from agriculture and deforestation.
The bronzed cowbird, once known as the red-eyed cowbird, is a small icterid.
The vermilion flycatcher is a small passerine bird in the tyrant flycatcher family found throughout South America and southern North America. It is a striking exception among the generally drab Tyrannidae due to its vermilion-red coloration. The males have bright red crowns, chests, and underparts, with brownish wings and tails. Females lack the vivid red coloration and can be hard to identify—they may be confused for the Say's phoebe. The vermilion flycatcher's song is a pit pit pit pidddrrrreeedrr, which is variable and important in establishing a territory. Riparian habitats and semi-open environments are preferred. As aerial insectivores, they catch their prey while flying. Their several months-long molt begins in summer.
The Montezuma oropendola is a New World tropical icterid bird. It is a resident breeder in the Caribbean coastal lowlands from southeastern Mexico to central Panama, but is absent from El Salvador and southern Guatemala. It also occurs on the Pacific slope of Nicaragua and Honduras and northwestern and southwestern Costa Rica. It is among the oropendola species sometimes separated in the genus Gymnostinops. The English and scientific names of this species commemorate the Aztec emperor Moctezuma II.
The screaming cowbird is an obligate brood parasite belonging to the family Icteridae and is found in South America. It is also known commonly as the short billed cowbird.