Cackling Goose aka Lesser or Small Canada or Canadian Goose

Cackling Goose aka Lesser or Small Canada or Canadian Goose

Goose Information / Overview ... Photos of the Different Goose Species for Identification ... Species Index of Geese

Cackling Geese - Branta hutchinsii minima

Cackling GooseOverview (below)

Alternate (Global) Names

Distribution, Migration and Habitat

Subspecies, Ranges and Identification

Description ... Behavior

Breeding / Nesting ... Diet / Feeding

Calls / Vocalizations ... Lifespan, Mortality and Predation ... Diseases / Health Problems


Cackling Geese (Branta hutchinsii)Overview

The Cackling Goose (Branta hutchinsii) occurs in North America, where it is regionally common.

This species has adapted well to living in urban and suburban areas and are commonly found on lakes, ponds and rivers.

In the past, the Cackling Goose was considered to be a smaller subspecies of the Canada Goose.

However, in July 2004, the American Ornithologists' Union's Committee split them up into two separate species based on genetic studies and differences in:

  • voice
  • size (most races of Cackling Goose being smaller than the Canada Goose)
  • breeding habitat (Cackling Goose breeds farther northward and westward than the Canada Goose)

There are 5 subspecies of Cackling Goose, of varying sizes and plumage details.

The smallest form of the Cackling Goose - the Lesser Canada Goose or Small Cackling Goose - is only about a quarter the size of the "Giant Canada Goose."

This goose is easily recognized by its black head and neck, distinctive white patches on the face, light tan to cream chest and its otherwise brownish-grey plumage.

They are strong swimmers, divers and flyers. Cackling Geese are long-distance migrants and are well known for their V-shaped flight formation, during which the front position is rotated since flying in front consumes the most energy.

This species is protected in North America under the Migratory Bird Act of 1918, making it illegal to harm, take, or possess migratory birds, any parts of the bird, their nests or their eggs, except during the hunting season, or by special permit (MacGowan, Loven and Whitford).

Ironically, notwithstanding the "legal protection" of this species, lethal culling / mass slaughter of these birds are being employed - via extended hunting seasons, fatal gassing and poisoning - to control the exploding populations of Cackling Geese in urban or densely populated areas.

Animal-loving people treat them as pets feeding them regularly, which resulted in many more young being born and successfully raised than their natural conditions would have otherwise allowed.

Many people consider the exploding populations of Cackling Geese as nuisances because of their messy droppings. Flocks feeding in fields also cause considerable damage to agricultural crops. Geese can also get aggressive towards humans, particularly when they feel their young are threatened.

The male is referred to as "gander," the female as "goose," and the chicks are called goslings. A flock of geese on the ground is known as gaggle. Geese flying in the typical v-formation are referred to as "wedge" or skein."

Cackling Goose - Branta hutchinsii

 

Richardson’s Cackling Goose (Branta hutchinsii ssp.hutchinsii) Alternate (Global) Names

Chinese: 加拿大雁 ... Danish: Lys Dværgcanadagås ... Dutch: Hutchins' Canadese Gans, Kleine Canadese Gans, Richardson canada gans ... Estonian: eskimo lagle ... French: Bernache de Hutchins ... German: Dunkle Kanadagans, Hutschins Zwergkanadagans ... Italian: Oca della tundra ... Japanese: Kanadagan, shijuugaragan ... Korean: 캐나다기러기 ... Lithuanian: Šiaurine kanadine bernikle ... Norwegian: Polargås ... Polish: Bernikla mała, bernikla pólnocna, bernikla północna ... Russian: Малая канадская казарка ... Slovak: bernikla tundrová ... Swedish: Dvärgkanadagås

Branta hutchinsii minima

Danish: Dværgcanadagås ... Dutch: Alaskagans, Cackling gans ... French: Bernache du Canada, Bernache naine ... German: Dunkle Zwergkanadagans

Branta hutchinsii asiatica

Dutch: Bering canada gans ... German: Bering-Zwergkanadagans ... Spanish: Barnacla canadiense ... French: Bernache du Canada ... Italian: Oca del Canada

 

Subspecies / Ranges, Identification and Breeding Data

  • Cackling Goose / Baffin Island Canada Goose or Richardson's Goose - Previously considered a subspecies of the Canada Geese (Branta canadensis hutchinsii- Richardson, 1832). In 2004, elevated to a distinct and separate species: Branta hutchinsii hutchinsii)
  • ID: Small goose with medium grey breast, black neck and front of head, white cheek patches. Males and females look alike.
  • Range: Central North America.
    • Winter: Spend the winters in northern USA south to California east to Louisiana and through to Mexico. Regular (non-breeding) visitor to Washington State.Breeding: Melville Peninsula, South Hampton, Baffin and Ellesmere Islands, Canada and western Greenland (Coastal western Alaska)
  • Nesting: Most breeding occurs between April to June. The nest is placed in grass near water on a slightly elevation location. It is guarded by both the male and the female prior to nesting and by male alone once nesting has begun. The average clutch consists of 4 - 6 eggs. The young fledge (are independent) when they are about 24 - 26 days old.

  • Lesser Canada Goose or Small Cackling Goose (Previously: Branta canadensis minima - Ridgway, 1885) - also separated from the Canada Geese as a subspecies of the Cackling Goose as Branta hutchinsii minima- although some still consider it to be part of the Canada Geese.
    • ID: Small goose with dark grey chest, black neck and front of head, and white cheek patches. Males and females look alike.Range: Western North America
      • Winter: Most winter in the Sacramento and San Joaquin Valleys of California (USA) south to Mexico.Breeding: Yukon Delta National Wildlife Refuge coastal zone in southwestern Alaska.
      Nesting: Most breeding occurs between April to June. The nest is placed in grass near water on a slightly elevation location. It is guarded by both the male and the female prior to nesting and by male alone once nesting has begun. The average clutch consists of 4 - 5 eggs. The young fledge (are independent) when they are about 23 - 24 days old.

  • Aleutian Cackling Goose (Branta hutchinsii leucopareia) - previously Aleutian Canada Goose (Branta canadensis leucopareia - Brandt, 1836)
    • Some authorities consider it a subspecies of the Small Cackling Goose (Branta hutchinsii minima) or the extinct Bering Cackling Goose (Branta hutchinsii asiatica).ID: Small goose (only slightly larger than a mallard duck) with grey breast, black neck and front of head, white cheek patches that don't meet under the throat, and white ring around the base of the neck. Males and females look alike.Range:
      • Winter in California, near Modesto where they winter primarily on two privately owned ranches and on the adjacent San Joaquin River National Wildlife RefugeBreeding: Formerly occurred throughout the Aleutian Islands situated in the Northern Pacific Ocean, westward from the Alaska Peninsula. However, nowadays mostly limited to wildlife refuges.
      Nesting: Most breeding occurs between April to June. They typically nest on south-facing turf slopes above rocky shorelines. It is guarded by both the male and the female prior to nesting and by male alone once nesting has begun. The average clutch consists of 4 - 6 eggs. The young fledge (are independent) when they are about 24 - 28 days old.

  • Cackling or Canada Goose (Branta hutchinsii taverneri previously Branta canadensis taverneri - Delacour, 1951)
    • Disputed subspecies: considered by some to be a mixture of races minima, occidentalis and parvipes.Range: Alaska Peninsula to Mackenzie Delta in the Northwest Territories, Canada.

  • Bering Cackling Goose formerly known as Bering Canada Goose (Branta hutchinsii asiatica) - doubtfully distinct from B. h. leucopareia; extinct (c.1929) - Formerly found on the Commander Islands (aka Komandorski Islands) and Kuril Islands in the North Pacific Ocean in East Asia.

Richardson’s Cackling Goose (Branta hutchinsii ssp.hutchinsii)

 

Cackling Geese (Branta hutchinsii)Description

The Cackling Goose is a small to medium-sized goose, with an approximate length of 21.7 -29.5 inches (55 - 75 cm), a wingspan of about 43 inches (110 cm), and a weight ranging between 33.5 - 105.8 oz (0.95 - 3 kg).

The plumage is mostly greyish-brown, with the exception of the black head and the long black neck, the whitish chest and characteristic white patches on the cheeks that run under its chin like a strap (commonly referred to as "chin straps"). The chest is light tan to brown.

The large webbed feet and wide, flat bill are black. The bill has lamellae (miniature ridges inside the bills of water-feeding birds or "teeth") around the outside edges of the bill that are used as a cutting tool.

In flight, their large, dark wings can be seen, and possibly a U-shaped white rump and white under-tail feathers.

Differences between Cackling and Canada Geese

The black head and black, long neck with white "chinstrap" distinguish the Cackling Goose from all other geese, except the generally larger Canada Goose and the similarly sized Barnacle Goose.

The Cackling Goose looks like a smaller version of the more common Canada Goose; but can usually be identified by its smaller size - although an overlap in size between the larger subspecies of Cackling Geese (B. h. hutchinsii - weighing between 3 - 4 lbs - a little larger than the well-known mallard) and the smaller subspecies of Canada Geese (weighing between 5 - 15 lbs) can make identification by size difficult.

Cackling Geese have more rounded heads and proportionally smaller, stubbier bills.

Their voices are higher-pitched than those of the Canadian Geese.

Due to their smaller size, Cackling Geese (particularly the smallest race "minima") display faster wingbeats than Canada Geese.

Male / Female Identification

Males and females look alike, although females are usually a little smaller than the males and have a different voice.

Juveniles

Immature birds have a duller head and neck coloration.

Yearly Molt:

During the breeding season (typically late-June to mid-July), Cackling Geese, undergo a complete simultaneous replacement of all their flight feathers, leaving them unable to fly for about a month - until the new flight feathers have grown in. During this time, they are particularly vulnerable to predation and prior to this molt, they typically move to safe area near water with readily available food and an unobstructed view for predators or danger. The new flight feathers grow back in time for their migration back to their wintering territories.

The first ones to undergo this molt are typically non-breeding juveniles, non-nesting adults and adults whose nests have been destroyed.

 

Richardson’s Cackling Goose (Branta hutchinsii ssp.hutchinsii)Distribution, Migration and Habitat

Cackling Geese have a large range, breeding across western Alaska, eastward through central Yukon across northern Canada to Baffin Island. They breed farther north and west than the related Canada Geese.

For the winter, they migrate to southern North America, from British Columbia southward to California and eastward to northern Mexico and western Louisiana.

Cackling Geese are vagrants to Western Europe, as well as Kamchatka Peninsula in eastern Siberia, eastern China and throughout Japan.

In some areas, migration routes have changed due to changes in habitat and food sources.

They inhabit coastal marshes, tundra, streams, ponds and steep turf slopes above rocky coasts.

 

Behavior

Cackling Geese are highly social creatures and - outside the breeding season - are usually seen in groups.

During the breeding season in particular, male Cackling Geese can be very aggressive towards intruders or predators, including readily attacking humans that get too close to their nests or young.

They also defend their territories against other (unfamiliar) geese, grabbing each other's chest with their beaks and landing blows with their wings.

These attacks are typically preceded by them lowering their heads to the ground with the beak open, pumping the head up and down, and making hissing sounds.

When charge against humans,, they usually stand erect, spreading their wings and producing a hissing sound followed by the attack, which usually involves biting and wing flapping.

 

Breeding / Nesting

Cackling Geese reach reproductive maturity when they are about 2 years old; and their first nesting usually occurs during the spring-summer of their third year. They usually find their mates during the second year of their lives.

Cackling Geese tend to choose mates that are similar in size (“assortative mating”) and typically mate for life. However, if one perishes, the other will select a new mate.

Most nesting activities are observed between April and June.

Cackling Geese breed in coastal marshes, along tundra ponds and streams. The females alone choose the nest-site, typically beneath shrubs or small trees, placing the nest on a slightly elevated patch of wetland vegetation, an elevated artificial nest platform; except for the Aleutian Cackling Goose which typically nest on south-facing turf slopes above rocky shorelines.

The nests are typically located in an area with good visibility and within 150 feet (45 meters) of water, such as streams, lakes, ponds and sometimes on beaver lodges. Even though pairs may nest within 10 feet (3 meters) of each other, they tend to prefer areas with low nest concentration, except for those nesting on cliffs, where colonies of several hundred pairs can be found. They typically return to the same general nesting site year after year.

The female builds the nest, a shallow bowl with a slight depression in the center. The nest is made of sticks, grasses, reeds and weeds, and lined with down feathers plucked from the female's chest and soft plant material.

Both the male and female defend the nest before egg laying and after the eggs have been laid, the male alone defends the nest while the female incubates the eggs. They usually only produce one brood a year, but if a clutch is destroyed, may start on a second.

A clutch can consist of 2 - 8 creamy-white eggs (mostly 4 - 6). Eggs are laid one every one and a half days apart. Only after a clutch is complete will the female commence incubation, which lasts about 25 - 30 days to hatching. While brooding the eggs, the female turns the eggs over often as is necessary for optimum development of the embryo. (Eycleshymer, 1907: New, 1957; Robertson, 1961a; Deeming, 1989). The hatching chicks break out of the shell by using an "egg tooth" - a hard growth on top of their beaks, which diminishes not long after hatching. It may take 8 - 36 hours for them to completely break out of the shell (French and Parkhurst, 2001).

The hatchlings are covered in down and their eyes are open. They are able to walk, swim, dive and feed themselves within 1 - 2 days after hatching. At this point, the goslings are led to feeding areas by their parents.

The parents are seen leading their young in a line - usually with one parent at the front and the other at the back.

The parents will protect their young, first warning intruders / predators with a hissing sound and then chasing them away. When the young are 7 - 10 weeks old (depending on the subspecies), the goslings are self-supporting and capable of sustained flight. However, the young usually remain with their parents until after the spring migration - when they return to their birthplace.

Goslings from several family broods may form "gang broods" - and these groups may contain up to 100 goslings.

During the incubation period, the adults lose their flight feathers and can't until after the chicks hatched.

Aleutian Cackling Goose or Tundra Goose (Branta hutchinsii leucopareia)

 

Calls / Vocalizations

Cackling Geese are usually very vocal and are known for their deep "honking" calls - often heard in flight.

They make hissing sounds when threatened.

 

Lifespan and Predation

Cackling Geese in the wild can live 10 - 25 years. Captive birds that are well taken care of could possibly live to 35 or even 40 years. .

Cackling Geese, in particularly their chicks and eggs, are at great risk of predation by other birds (crows, ravens, magpies, seagulls), arctic foxes, skunks, raccoons, coyotes, red foxes, minks, bears, dogs and snapping turtles.

Adults are most often injured or killed by human hunters.

 

Diseases / Health Problems

Common diseases of the Cackling Geese include avian cholera, avian botulism, avian salmonellosis, chlamydiosis, duck plague (or duck virus enteritis, DVE), aspergillosis and gizzard worms.

The spread of disease is facilitated in resident (non-migratory) goose populations or large congregations of birds where these geese come in close contact with each other

Many succumb from heavy metal poisoning - picked up from contaminated mining sites, but also caused by the ingestion of lead shots during the hunting season and lead fishing weights).

Species Research by Sibylle Johnson

For updates please follow BeautyOfBirds on Google+ (google.com/+Avianweb)


 

Diet / Feeding:

Cackling Geese are mostly herbivores - feeding on green vegetation (including a variety of grasses, pondweed, clover, cattails, bulrushes and algae), grains and berries (if available) found in shallows, marshes and fields.

Sometimes they will also eat small insects, fish, small crustaceans and mollusks that are attached to aquatic vegetation - particularly when breeding or feeding young, as they need more protein in their diet for their development.

On land, they graze while walking, grasping a plant with its bill and tearing it with a jerk of the head. They will take grains, such as wheat, beans, rice and corn. They will typically eat those plants just as they first emerge after planting, and again when the seed head matures.

In water, they feed on submerged aquatic vegetation (such as seaweeds) by reaching under the water with their long necks or by upending (feeding upside down in water).

In urban cities, they will accept food they are offered by humans or pick food out of garbage bins.

They typically feed in early morning and late afternoon. When migrating, they may also feed at night.

Food moves fast through its digestive system - sometimes in an hour or even quicker. Therefore, these geese have to take in a lot of food to get the needed nutrition and produce large amounts of feces (Elvecrog).

Feeding Ducks and Geese ...

We all enjoy waterfowl and many of us offer them food to encourage them to come over and stay around - and it works! Who doesn't like an easy meal!

However, the foods that we traditionally feed them at local ponds are utterly unsuitable for them and are likely to cause health problems down the road. Also, there may be local laws against feeding this species of bird - so it's best to check on that rather than facing consequences at a later stage.

Please note that feeding ducks and geese makes them dependent on humans for food, which can result in starvation and possibly death when those feedings stop. If you decide to feed them, please limit the quantity to make sure that they maintain their natural ability to forage for food themselves - providing, of course, that natural food sources are available.


 

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