Ross's Goose
Anser rossii
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassAves (Birds)
- OrderAnseriformes (Waterfowl)
- FamilyAnatidae (Ducks, Geese, and Swans)
- GenusAnser (Grey Geese)
- SpeciesAnser rossii (Ross's Goose)
About the Ross's Goose
Ross's goose (Anser rossii) is a white goose with black wingtips and a relatively short neck. It is the smallest of the three white geese that breed in North America. It is similar in appearance to a white-phase snow goose, but about 40% smaller. Other differences from the snow goose are that the bill is smaller in proportion to its body and lacks "black lips". Like snow geese, Ross's geese may exhibit a darker "blue" phase or morph, though this is extremely rare (<0.01% of adult birds).
Before the early 1900s, this goose was considered a rare species, possibly as a consequence of open hunting, but numbers have increased dramatically as a result of conservation measures. It is now listed as a species of Least Concern by the IUCN, and is protected by the Migratory Bird Treaty Act.
Ross's goose is named in honor of Bernard R. Ross (1827–1874), who was associated with the Hudson's Bay Company in Canada's Northwest Territories. Members of the Hudson's Bay Company were the first Europeans to discover the arctic nesting grounds of Ross's geese in 1940. The first recognizable description of Ross's geese, under the name "horned wavey", was given by explorer Samuel Hearne 80 years before John Cassin named it after Ross. Wikipedia →
Closest Relatives at Saguaro National Park
Snow Goose
Anser caerulescens
Swan Goose
Anser cygnoides
Greater White-fronted Goose
Anser albifrons
Mallard
Anas platyrhynchos
American Wigeon
Mareca americana
Ring-necked Duck
Aythya collaris
Northern Shoveler
Spatula clypeata
Ruddy Duck
Oxyura jamaicensis
Cinnamon Teal
Spatula cyanoptera
Common Teal
Anas crecca
Northern Pintail
Anas acuta
Gadwall
Mareca strepera
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Joshua Tree National Park | 🇺🇸 United States | |
| 2 | Death Valley National Park | 🇺🇸 United States | |
| 3 | Yellowstone National Park | 🇺🇸 United States | |
| 4 | Channel Islands National Park | 🇺🇸 United States | |
| 5 | Glacier National Park | 🇺🇸 United States | |
| 6 | Wadden Sea National Park | 🇩🇪 Germany | |
| 7 | Shenandoah National Park | 🇺🇸 United States | |
| 8 | Jasper National Park | 🇨🇦 Canada | |
| 9 | Saguaro National Park | 🇺🇸 United States | |
| 10 | Elk Island National Park | 🇨🇦 Canada | |
| 11 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 12 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 13 | Grand Teton National Park | 🇺🇸 United States |