WVuncommon

Snow Goose

Anser caerulescens

"Blue Goose (dark morph — same species)" · "White Brant (historic)"

When in Memphis

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Present
Peak
Now

Migration

Migration

Snow Goose · ~5,000 mi round-trip

Winters in
Gulf Coast & Mississippi River Valley
Breeds in
Arctic tundra of northern Canada

Snow Goose

Look for

Two color morphs of the same species:

  • White morph: entirely snow-white with jet-black wingtips (visible in flight)
  • Blue morph ("Blue Goose"): dark gray-brown body with white head and neck

Both morphs have a pink bill with a "grin patch" (black line along the cutting edge of the bill) and pink legs. Adults only; juveniles are duller.

Size: ~28" — goose-sized, smaller than Canada Goose.

Listen for

  • Call: a high, raspy, honking "ow-OW-ow-OW" or "whouk-whouk" — higher-pitched than Canada Goose, given constantly in flight.
  • Massive flocks overhead sound like a distant crowd — a wall of calling birds hundreds or thousands strong.

Where near Memphis

Reelfoot Lake is the region's Snow Goose hotspot — tens of thousands stage there mid-winter. Also possible at:

  • Ensley Bottoms (flooded fields)
  • Mississippi River overflights
  • Agricultural fields throughout West TN/East AR in winter

Peak: December–February.

Behavior

  • Migrate in massive flocks — 10,000+ birds not unusual
  • V-formation or curving lines in flight
  • Graze on farm fields — winter wheat, corn stubble, rice
  • Roost on water at night
  • Arctic breeders — they raise their young in the High Arctic tundra (northern Canada, Greenland)

Story

The blue/white morph puzzle

Snow Geese come in two color forms controlled by a single gene. They interbreed freely, and flocks in the Mississippi Flyway contain both morphs side by side. For 150 years, "Blue Goose" and "Snow Goose" were considered separate species — until genetic work in the 1960s confirmed they're one species with polymorphic coloration.

The blue morph is more common in the central flyway; the white morph dominates the eastern flyway. Reelfoot Lake sees mostly white morphs but with noticeable numbers of blue morphs mixed in.

The Arctic-to-Gulf-Coast journey

Snow Geese are long-distance migrants — breeding in the Canadian Arctic, wintering along the Gulf Coast and lower Mississippi Valley. Reelfoot and the Arkansas Grand Prairie are key staging and wintering areas for the Mid-continent Population.

Population has grown explosively over the past 50 years — from ~2 million in the 1970s to ~15 million today. The growth is so intense that Arctic breeding grounds are being damaged by overgrazing, and wildlife agencies now have conservation hunting orders to try to reduce populations.

Watching a Snow Goose spectacle

Seeing 10,000+ Snow Geese lift off a shallow field at sunrise is one of the great North American bird spectacles. The wingbeats sound like rolling thunder. Reelfoot Lake, White River NWR (Arkansas), and the Arkansas rice prairies all host this phenomenon Dec–Feb.

Fun facts

  • Ross's Goose (smaller cousin) mixes with Snow Geese — look for tiny birds with stubby pink bills and no "grin patch."
  • They can fly ~50 mph on migration.
  • Oldest known wild Snow Goose: 27+ years.
  • The dark wingtip feathers contain melanin — which strengthens flight feathers exposed to abrasion.
  • Adults mate for life; pair-bonds are remarkably stable.

Field notes (to add)

  • Reelfoot peak-count dates
  • Photo: white + blue morphs side by side
  • Family-group flight formation vs. mixed flock