Difference between revisions of "Swan Goose" - BirdForum Opus

Latest revision as of 06:31, 22 January 2024

Photo by scottishdude
Shen Yang, China, June 2006

Anser cygnoides

Identification

81-94 cm
Bi-colored neck and all black bill.

Dark brown crown, nape and hindneck
Pale creamy-brownish lower sides of head and foreneck

Adult

Whitish band from lores across forehead, bordering base of bill

Juvenile

Duller crown, nape and hindneck
Lacks whitish face-band

Photo by BIJ
Yeyahu Nature Reserve, Beijing, China, March 2009

Similar Species

Greylag Goose has an orange bill and lacks pale foreneck and whitish face-band.

Distribution

Asia: found in Russia, Siberia, Siberia, Kazakhstan, Uzbekistan, Mongolia, China, Tibet, Korea, Taiwan
Southeast Asia: Indochina, Laos

Feral birds of the domesticated form of this species are found in many parts of the world, but especially the USA.

Taxonomy

This is a monotypic species^[1].

The domestic form of Anser cygnoides is also know as the Chinese Goose. The domesticated form has two morphs, brown and white, and differs from the wild type in having a shortened bill and having developed a knob at the base of the bill, not present in the wild bird, that is particularly pronounced in the female domestic goose.

Habitat

Steppes, mountain valleys, marshes and other wetlands.

Behaviour

Many on-line sources state this bird 'rarely swims'; however, there are many pictures of these geese clearly showing them on and around water.

Breeding

The 5-8 eggs are laid in a ground nest.

Vocalisation

Call: a prolonged, resounding honk, ending at higher pitch.
Alarm call: Repeated, short, harsh notes.

References

Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2013. The eBird/Clements checklist of birds of the world: Version 6.8., with updates to August 2013. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
Avibase
tastejiangsu.com
BirdLife International
Wikipedia

List of references

Recommended Citation

BirdForum Opus contributors. (2024) Swan Goose. In: BirdForum, the forum for wild birds and birding. Retrieved 16 June 2024 from https://www.birdforum.net/opus/Swan_Goose

External Links

Search for photos of Swan Goose in the gallery

GSearch checked for 2020 platform.1

@@ Line 1: / Line 1: @@
-[[Category:Anser]]
+[[Image:Swan goose.jpg|thumb|550px|right|Photo by {{user|scottishdude|scottishdude }} <br />Shen Yang, [[China]], June 2006]]
 ;[[:Category:Anser|Anser]] cygnoides
-[[Image:Swan_Goose.jpg|thumb|550px|right|Photo by Joe A<br />Photo taken: Texas.]]
 ==Identification==
--94cm.  Long neck, long, heavy black bill, brown cap, pale underparts apart from some belly streaking, brown upperparts, orange legs. The sexes are similar, although the male is larger, and juveniles are duller. The voice is a loud honking.
+-94 cm<br />
+Bi-colored neck and all black bill.
+*Dark brown crown, nape and hindneck
+*Pale creamy-brownish lower sides of head and foreneck<br />
+'''Adult'''
+*Whitish band from [[Topography#Heads|lores]] across forehead, bordering base of bill<br />
+'''Juvenile'''
+*Duller crown, nape and hindneck
+*Lacks whitish face-band
+[[Image:P1010717.JPG|thumb|350px|right|Photo by {{user|BIJ|BIJ}}<br />[[Yeyahu Nature Reserve]], Beijing, [[China]], March 2009]]
+====Similar Species====
+[[Greylag Goose]] has an orange bill and lacks pale foreneck and whitish face-band.
 ==Distribution==
-[[Mongolia]], northernmost [[China]], and southeastern [[Russia]].
+[[Asia]]: found in [[Russia]], [[Siberia]], [[Siberia]], [[Kazakhstan]], [[Uzbekistan]], [[Mongolia]], [[China]], [[Tibet]], [[Korea]], [[Taiwan]]<br />
+'''Southeast Asia''': [[Indochina]], [[Laos]]
+Feral birds of the domesticated form of this species are found in many parts of the world, but especially the [[USA]].
 ==Taxonomy==
-The photos to date uploaded for this species are all of the domesticized form of Anser cygnoides aka Chinese Goose.  The domesticated form has two morphs, brown and white, and differs from the wild type in having a shortened bill and having developed a knob at the base of the bill, not present in the wild bird, that is particularly pronounced in the female domestic goose.
+This is a [[Dictionary_M-O#M|monotypic]] species<sup>[[#References|[1]]]</sup>.
+The domestic form of Anser cygnoides is also know as the Chinese Goose.  The domesticated form has two morphs, brown and white, and differs from the wild type in having a shortened bill and having developed a knob at the base of the bill, not present in the wild bird, that is particularly pronounced in the female domestic goose.
 ==Habitat==
 Steppes, mountain valleys,  marshes and other wetlands.
 ==Behaviour==
-It rarely swims.
+Many on-line sources state this bird 'rarely swims'; however, there are many pictures of these geese clearly showing them on and around water.
+====Breeding====
+The 5-8 eggs are laid in a ground nest.
+====Vocalisation====
+'''Call''': a prolonged, resounding honk, ending at higher pitch.<br />
+'''Alarm call''': Repeated, short, harsh notes.
+==References==
+#{{Ref-Clements6thAug13}}#Avibase
+#tastejiangsu.com
+#BirdLife International
+#Wikipedia
+{{ref}}
+==External Links==
+{{GSearch|"Anser cygnoides" {{!}} "Swan Goose" {{!}} "Chinese Goose"}}
+{{GS-checked}}1
+<br />
+<br />
--8 eggs are laid in a ground nest.
+[[Category:Birds]] [[Category:Anser]]
-==External Links==
-{{GSearch|Anser+cygnoides}}
-*[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=150&Bird_Image_ID=4018&Bird_Family_ID=59 View more images of this species on Orientalbirdimages]
-[[Category:Birds]]