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- Where they breed
- Where they winter
- Identification
- Color morphs
- Juveniles (first year birds)
- A note about neck bands
- Snippets of useless information
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- Western population breeds from n Alaskan coast eastwards to Banks
(NWT) and Victoria (NU) Islands of arctic Canada.
- Midcontinent population breeds from e Victoria Island south to
Pelly Lake (NU), e to sw Baffin Is, s to Southampton Is. and along
w coast of Hudson Bay (NU/MAN) to mid-James Bay (NU) and on east
coast of Hudson Bay (PQ).
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- Western population winters from s BC through WA and OR to CA,
coastal lowlands of nw Mexico, sw AZ, se CO, s NM and Chihuahua
and s on central plateau of Mexico to c Jalisco.
- Midcontinent population winters from se NE s through e KS, e OK
and e TX; east through s-c IA, c IL, s through w KT, w TN and w
AL to Gulf coast, LA and TX s to n Tamaulipas.
- Highest densities along Missouri River and LA and TX Gulf coast.
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- Breeds from ne Ellesmere Is (Nunavut Territory, NU), Axel Heiberg
Is, Devon & Bylot Is., to n & nw Baffin Island and to west
of Baffin & Ellesmere Islands. Also Thule, Greenland.
- Small numbers on Somerset, Prince of Wales and Bathurst Islands.
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- Winters along Atlantic coast from MA to SC.
- Main concentrations in NJ (Forsythe NWR), se PA (lower Susquehanna
River), DE (Bombay Hook, Prime Hook NWRs), MD, VA (Chincoteague
NWR) and NC (Pea Island NWR).
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- 95% Breed in the Queen Maud Gulf Migratory Bird Sanctuary in NWT
in the central Canadian Arctic.
- Remainder along w and s coasts of Hudson Bay, Southampton I.,
sw Baffin I., Banks I.
- Colonial breeder, usually with Lesser Snow Geese.
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- Main wintering area is the Central Valley of CA.
- Increasing numbers winter in se CO, w OK, NM, n TX and nc Highlands
of Mexico. Also Gulf coasts of LA and TX.
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- Very similar overall other than size.
- Size difference only obvious when both subspecies together.
- Both have “grinning patches”.
- For our area, look for smaller headed, short-billed, smaller bodied
snow goose amongst the Greaters.
- Lesser often mistaken for Ross’ or hybrid.
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- Lesser and Greater have ‘grinning patches’ - tomia of both mandibles
are black. Ross’ does not have an obvious grinning patch.
- Head feathering on Greater and Lesser extends onto bill in a U-shape.
Ross’ feathering meets the bill in a vertical line.
- Bill of adult Greater & Lesser uniform pink. Bill of Ross’
pink with olive-gray to purple caruncles on basal end of upper mandible.
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- Ross’ has small, rounded head
- Ross’ has no prominent grinning patch
- Ross’ has relatively short neck
- Ross’ has stubby, triangular bill
- Ross’ has dark ‘warts’ at base of bill
- Ross’ always lacks yellow head staining
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- Type 1 (+2) “pure white” with 7 black primaries and little or
no gray on coverts.
- Type 7 (+6) “pure blue” with all underparts gray and mostly pale
(or white) between legs and tail.
- Blue phase Ross’ Goose (rare) thought to be result of white Ross’/blue
Lesser Snow.
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- Usually black letters/numbers on yellow.
- Often easy to read with a scope.
- Double-check the code (or get a second opinion).
- Send to: http://www.pwrc.usgs.gov/bbl
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- Ross’s Goose is named after Bernard Rogan Ross (1827-1874), chief
trader with Hudson’s Bay Company. Ross’s Gull is named after James
Clark Ross (1800-1862), Royal Navy officer.
- The Cree word for Snow Goose is ‘Wawa’.
- Transit time of food in gut 1-2 hr; defacation rate 15 dropping/hr
in marsh, 6 droppings/hr in small grain cereal fields.
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