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Canada goose (Branta canadensis) Bird Profile

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Canada goose bird, scientific name Branta canadensis is a large wild goose species that has a head and neck, white cheeks, white under cheeks and a brown body. Native to the Arctic and temperate regions of North America, its migration occasionally reaches northern Europe.

Canada goose bird has been launched in the United Kingdom, Ireland, New Zealand, Argentina, Chile, and the Falkland Islands. Canada Geese, like most geese, are primarily herbal and commonly grown; It is found in or near sweet water.

Ultimately successful in living in human-altered territories, Canada goose bird has been able to establish breeding colonies in urban and populated areas, providing food and a few natural predators.

Due to the success of this common breed in the park, Canada goose is often regarded as a pod species because of its crop degradation and its noise, degradation, aggressive regional behavior towards both humans and other animals and the habit of begging for food (feeding by human hands).

Canada goose was one of the many species of Carl Linnaeus in his 18th-century composition Systema Natura. It is comprised of the Brenta genus of Geese, contains mostly black plumaged species and distinguishes it from the gray species of Ennis.

Description

Sitting between a clutch member and parent of Canada Goose Gulling, spotted at a municipal park in Waterloo, Ontario. The yellow plumage around the neck and head separates adolescents from adults.

Blackhead and neck with a white “chinstrap” make Canada goose distinct from all other goose species except cuckooing goose and barnacle goose (however, later have a black breast and brown body gray rather than plumage).

The seven subspecies of this bird vary widely in size and plumage description but are all recognized as Canada geese. Some small races can be tough to separate from the cackling goose, which overlaps a bit in mass.

However, most subspecies of cackling goose (excluding Richardson's chuckling goose, B.H. Hutchinson) are small enough to be the smallest cuckling goose, B.H. Minima, much less than Mallard.

In addition to size differences, cuckooing geese have a neck and more small bills, while small Canada geese come with relatively large cuckooing geese, Canada goose is generally the largest living species among useful “real geese” (such as the genus Ansar, Brenta or Chen), though with this genus.

Although not in a close relationship, some other species named are on average heavier, such as spur-winged goose and cape barren goose.

Geese of Canada range from 75 to 110 centimeters (30 to 43 inches) and 127-185 cm (50-73 inches) in length.

In standard measurements, the wing cord can be from 39 to 55 cm (15 to 22 inches), the tarsus can range from 6.9 to 10.6 cm (2.7 to 4.2 inches), and the bill can be from 4.1 to 6.8 cm (1.6 to 2.7) inside the range. ).

The largest subspecies is B.C. The Maxima, or Canada Giant Goose, and the smallest (with the separation of the Cackling Goose group) are the B.C. Party or less Canada goose. The race is an exceptionally large male BC.

The maxima, which rarely exceed 8 kg (18 pounds), weigh 10.9 kg (24 pounds), and the wings are 2.24 meters (7.3 feet). This specimen is the largest wild goose recorded in any species

The male Canada goose usually weighs 2-2-3 kg (5-3-3.3 lb), with an average of 5 kg (5.6 lb) across all subspecies.

The female looks virtually identical but is mild at 2.5-1.5kg (1.5-12.12lb), with an average of 6.6kg (9.5 lb) in all subspecies and generally linear compared to the male. 3% smaller in dimension.

The female is also different from the male and possesses less sonic.

Distribution and Accommodation

This species is native to North America. It breeds extensive habitats in Canada and North America.

The Great Lakes region maintains a large population of Canada's geese. Geese of Canada occur year-round throughout most of their breeding range, along the southern seaboard, and along the Pacific coast.

In the southern United States and northern Mexico between California and South Carolina, Gizz of Canada is present in the winter as a migrant from the north.

In the early twentieth century, the end of the 19th century and the beginning of the 20th century, extreme and habitat depletion led to a severe decline in the local range of these birds.

Harold Hanson of the Illinois Natural History Survey says the Canada goose tribe was believed to have disappeared in the 1980s when a small winter shake was discovered in Rochester, Minnesota, in 192.

In 1964, the Northern Prairie Wildlife Research Center was built near Jamestown, North Dakota. Its first director, Harvey K. Nelson, spoke of Forrest Lee as head of the Canada Goose Production and Recovery Program at the center, leaving Minnesota. Forrest soon had 64৪ pens with 64 breeding pairs of screened, high-quality birds.

The project involves private, state and federal agencies and relies on the expertise and cooperation of many individuals. By the end of the 5th, more than 3 giant Canada Gigs were released at 83 sites in 2 counties in North Dakota.

With improved game law and habitat recreation and conservation programs, their populations have recovered most of their population, although some local populations, especially subspecies B.C. Incidentally, there may still be a decrease.

In recent years, the Canada goose population has grown substantially in some areas, so many consider them to be pests for their degradation, bacteria causing them to fall, noise and conflicting behavior.

This problem is partly due to the removal of natural predators and the abundance of safe, man-made aquifers near food sources, such as on golf courses, public parks and beaches, and in planned communities due to Canada goose due to the interference of various migratory subspecies with introduced non-migratory giant subspecies. Almost like one of the features of this national urban environment in recent years.

Contrary to the usual rules of migration, large swaths of Canada have established permanent habitat in the Chesapeake Bay in the James River area of ​​Virginia, and in the Lower Mainland of British Columbia, the Virginia River Triangle (North Raleigh, Durham). , Chapel Hill), and nearby Hillsborough.

Some have taken up residence permanently in the South as far as Florida in a retention pond at the Canada Giz Apartment Complex. Canada Goose has large resident populations throughout much of the San Francisco Bay area of ​​northern California. At 28, Ohio's population of Canada's Giz is estimated to be about 1, with the number likely to increase.

Many of the former immigrants became indigenous, even in the summer to live in the state. The reason for this enhancement is the lack of natural predators, abundant water and plenty of grass on manicured lawns in urban areas.

Canada's geese were eradicated in Ohio after the United States Civil War, but they were reintroduced in 10 with 10 pairs. The population was estimated at 1.9 in 1979.

The Ohio Department of Natural Resources proposes non-lethal terrifying strategies and hedging techniques for sediment resins, but if these national methods are used without success, they may issue a permit that can be used to destroy homes from March 11 to August 31, Conduct a goose roundup or shoot the geese.

Canada Goose has arrived naturally in Northern Europe, as evidenced by the restoration of the resort. Birds include B. subspecies c. Parvips and probably others. These geese are also found naturally in the Kamchatka Peninsula in eastern Siberia and in eastern China.

Canadian silver also originated in Europe and established populations in Great Britain, Ireland, the Netherlands, Belgium, France, Germany, Scandinavia and Finland in the mid-eighteenth century.

Most of the European population are not emigrants, but those in the northeastern region of Sweden and Finland have moved to the North Seas and the Baltic coasts. Feral birds are common in parks and in some areas, they have become pests.

In the early seventeenth century, Samuel de Champlain, the explorer, sent several pairs of geese to France as gifts for King Louis XII. Giz was first introduced to Britain as an addition to King James II's watercolor collection at St James' Park.

They were introduced in Germany and Scandinavia during the 20th century, beginning in Sweden in the 5th. In Britain they were spread by poachers, but by the mid-twentieth century it was remarkable.

Their population increased from 225 to 5 birds in 1, to approximately 12,4 in 1 year, with changing agricultural practices and urban growth providing a new habitat. Most of the European birds originate from the B. subspecies. Canadensis, probably with some contribution to subspecies B.C. Maxima.

New Zealand

Canada's geese were introduced as a game bird in New Zealand on the 5th. They are grazing fields and damaging crops have become a problem in some areas.

These were protected by wildlife law in the 5th and the population was governed by fish and game New Zealand, increasing the number of extra birds. On the 21st, the government removed the protection status by allowing anyone to kill a bird.

Finland

Goose in Canada was first brought to Finland in 1960 as a game animal. The Canada goose has adapted well to living in Finland and is even causing some problems, especially at golf courses and pastures in the country. The problem, though, right now, is that it's just cosmetic.

Behavior

Canada goose, like most geese, also migrates to most areas of the United States during the winter. Calls from a large group of Canada geese in the V-shaped formation indicate the overhead is transformed into spring and autumn.

In some regions, migration routes have changed due to changes in habitat and food sources. Some people have become illiterate due to the lack of adequate winter food supplies and former predators in a mild climate from southwestern British Columbia to the Great Lakes in California.

Men behave both on and off the reproductive and nesting sites, and aggravation is rarely involved. In a documented case, a man is involved in protecting his nest from roaming ducks in the area; The following attack lasted an hour until Bryant's death.

The canvas goose's head was inhaled or drowned in the mud as a direct result of the lip in the mud. Researchers have attributed this to Brent's inability to release high hormone levels and nerve areas.

Diet

Canada goose is largely vegetarian, although they sometimes eat small insects and fish. Their diet includes green plants and grains. In Canada goose lands while eating different types of grass. It grabs the blade of the grass with the bill, then feeds it around the head.

Canada goose eats beans and grains such as wheat, rice, and corn when available. In the water, it slides its bill beneath the body of water and receives food from aquatic plants.

It also feeds on aquatic plants such as moss, such as in the sea. In urban areas, it is also known for picking food in trash containers. They are sometimes fed by people in the park with different grains and other foods.

Reproduction

Geese and goslings show structure in the English canal

In the second year of their life, Canada Gies finds a mate. They are single and most couples live together for all parts of their lives. If one dies, the other gets a new partner. On average, five to two eggs are laid, and both ovarian parents guard the nest, but the wife spends more time at home than the male.

Its nest is usually in a high area near the water, such as lakes, lakes, ponds and sometimes beaver lodges. Its eggs are plant material and are laid in a shallow pile lined underneath.

The incubation period, where women are infected while the wife is nearby, lasts 2-12 days after laying. Canada Giz responds to external climate factors by adjusting their placement data at maximum temperatures, which can benefit their nest success.

When the annual summer breaks occur during the breeding season, adults lose their flight feathers for 20-40 days and retrieve the aircraft at approximately the same time their guardians begin to fly.

With hatchlings hatched, they were able to instantly walk, swim, and look for their own food (food similar to that of an adult Giz). Parents are often seen moving their gowns in one line, usually with one adult in the front and the other in the back.

While guarding their footsteps, parents often chase violent animals away from nearby animals, starting with small blackbirds, after being warned after warnings, and if the threat is not retreated or captured, they attack with wings and bites and slaps.

Canada geese are especially protective animals and sometimes humans, including their native region I'm sure any animal will attack. Most species that hunt on eggs also swallow. Although parents are unfamiliar with unfamiliar gigs, they can create lots of gossiping and a few adult groups called crutches.

The offspring enters the neonatal stage at any time between 6 and 9 weeks of age. They do not leave their parents until the spring transfer after they return to their birthplace.

Migration

Canada goose is known for its seasonal migration. Most Canada Geese is on stage or places of rest where they join others. Their autumn migration is seen from September to the beginning of November.

Early migrants are less likely to spend less time at rest stops and migration tends to move much faster.

The next bird usually spends more time at a rest stop. Some geese bake the same nest year after year and lay eggs with their mates, raising the same, every year. It is frequently recorded from a number of tagged geese on the eastern shore.

Canada goose flies to form a distinct V-shaped flight with a height of 1 kilometer (3,000 feet) for migration flights. The ceilings of most flights to Canada Giz are unknown, but they are reported to have gone 9 km (29,000 feet).

Five Canada geese less flyovers

Researchers flying in V Formation have become the subject of research. The front position is rotated as the front spends most of the energy flying. Canada goose leaves Winter Field more than summer field Leave elevated thyroid hormones, such as T3 and T4, have been measured in Gizzi after major migration.

It is believed that due to the long flies in migration, the thyroid gland transmits more T4 which helps the body cope with the long journey. The increased T4 level is also associated with increased muscle mass (hypertrophy) of the nipple muscles, due to the longer time spent flying.

It is believed that the body accelerates the metabolism and sends a longer T4 to the body of the goose with this long work to reduce the temperature at which the muscles work. Also, in other studies, the levels of stress hormones such as corticosterone increased dramatically during and after transfer.

Inauguration

The life span of the sunshine varies from 10 to 24 years for adults to survive. The British longevity record is contained by a specimen tagged as a nest, which was observed live at York University at the age of 31.

Hunting animals

Canada builds habitable habitats on high ground near Geez water. This woman is nesting in a Beaver Lodge.

Familiar predators of eggs and gulling include coyotes, Arctic foxes (Volpus legopus), northern raccoons (Procyon litter), red foxes (Volpus vulpes), large gulls (Laras species), common crow (Corvus corax), American crow. (Corvus brachyrhynchos), Carian crow (in Europe, Corvus coronus) and both brown (Ursus arctos) and American black bear (Ursus americanus)

Once they reach a ripe age, Canada Gies are rarely introduced due to their large size and often aggressive behavior, though earlier injury may make them more vulnerable to natural predators.

Beyond humans can also be taken by adult coyotes [45] and gray wolves (Canis lupus). Avian predators that are known to kill adults include snowy owls (Bubo scandiacus), golden aggloss (Aquila chrysetos) and tactile gulls (Haliaetus leucocephalus) in young animals, and although large adult mammals are rarely spotted on sunburn (rarely bubbling). Goshawks (Ascipiter genitalis), Peregrine Falcons (Falco P) Aeruginas) and gyrfalcons (Falco rusticolas).

As adults are strong enough to displace potential predators from the nest, predator resistance usually falls to the older males of the pair.

Males usually try to draw attention to predators and tolls (Mob terrestrial predators without physical contact) that are often accompanied by males of other goose species. Ag stools of both species are often seen as a cause for fly mass at some distances, although in other instances, enclosures may appear to be concerned with tick eggshells on the near side, only when the theming gull appears to exhibit active prey behavior.

Canada Geese are very wary of humans where they are regularly hunted and killed, but otherwise can become a habit of fearlessness to humans, especially where they feed them. This often makes the geese overly aggressive to humans, and large groups of birds can be considered a nuisance if they cause persistent problems to people and other animals in the surrounding area.

Disease

Canada Geese is sensitive to avian bird flasks like the H5N1. A study using the HPAI virus, the H5N1 virus, showed that Giz was susceptible to the virus.

It proved useful in monitoring the spread of the virus through the high mortality of infected birds. Prior exposure to other viruses may result in some resistance to H5N1.

Population

In 2000, American North American people were estimated at between 4 million and 5 million birds for gigs. A 20-year study from 1983 to 2003 in Wichita, Kansas, showed that winter Canada goose raises in the city limits increased from 1,600 to 18,000 birds.

Watch the video: Canada Goose - Thug Life Represent! (March 2021).

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