White-throated Sparrow

Look for

A chunky, dark-streaked sparrow with a crisp white throat patch bordered by a gray chest, striking black-and-white (or black-and-tan) head stripes, and a yellow spot between the eye and bill — the single best field mark. Two head-color morphs exist, and they're equally common.

Often seen scratching in the leaf litter with a distinctive two-footed backward hop — if you hear rustling under a bush in Memphis winter, it's probably this bird.

Size: ~6¾" — classic sparrow size.

Listen for

• Song: a clear, wistful whistle — "Oh-sweet-Canada-Canada-Canada" (Canadian version) or "Old-Sam-Peabody-Peabody-Peabody" (American version). Same bird, same song, two folk transcriptions.
• Call: a sharp metallic "pink!" or "chip" from shrubbery.

You mostly hear snippets of song in winter, but on a mild February afternoon males start practicing — a sure sign of spring coming.

Where in Memphis

The defining sparrow of Memphis winter. They arrive in early-to-mid October and stay until late April. You'll find them anywhere with brush piles, hedgerows, or feeders near cover:

• Backyards with millet or sunflower seed on the ground
• Overton Park Old Forest understory
• Shelby Farms thickets
• Lichterman
• Wolf River Greenway edges

They travel in loose winter flocks, often mixed with Dark-eyed Juncos, White-crowned Sparrows, and Song Sparrows.

Behavior

• Ground feeders. They rarely go up into shrubs to feed — watch the leaf litter.
• The two-footed hop. They kick backward with both feet simultaneously to uncover seeds, like a tiny chicken.
• Two plumage morphs — and the genetics are wild. See the story below.
• They sing in winter. Unlike most songbirds, males whisper-sing on sunny winter days to hold a feeding territory.

Story & folklore

The "Oh Sweet Canada" bird

In Canadian folk memory this bird's song is "Oh-sweet-Canada-Canada-Canada," and it's become something of a national sound — used in broadcast idents and nature recordings. In the American South, the older folk transcription is "Old Sam Peabody, Peabody, Peabody" — and some old-timers in Memphis still call them "Peabody birds."

Fun crossover: Memphis has a Peabody Hotel with its own famous birds (ducks). The Peabody sparrows and the Peabody ducks share nothing but a name, but it's a nice coincidence.

The four-gendered bird

White-throated Sparrows come in two color morphs: white-striped (flashy black-and-white head) and tan-striped (duller, buffier). The morphs are genetic, locked to a huge chromosome rearrangement called ZAL2m — basically their 2nd chromosome comes in two utterly different flavors.

And here's the wild part: they almost always mate with the opposite morph. White-striped birds pair with tan-striped, nearly 100% of the time. Researchers describe the species as having four functional sexes — white male, white female, tan male, tan female — because behavior, aggression, and parenting differ by morph and sex in intersecting ways.

It's one of the most-studied systems in evolutionary biology. And every Memphis winter, you've got both morphs hopping around your yard.

The sound of migration

Birders across the mid-South track the season by White-throated Sparrow vocalizations. The first October "pink!" call from a brush pile is the moment winter birding begins in Memphis. The last April song — sometimes into May — is the wave goodbye.

Fun facts

• They can live over 14 years in the wild — ancient for a small songbird.
• Males sing in their sleep sometimes, according to lab studies.
• The song's pitch has shifted measurably over decades — researchers recording the same populations 40 years apart documented a culture-wide song change, one of the clearest examples of rapid learned-song evolution in any bird.
• They migrate at night, using the stars.
• A winter flock will often return to the same brush pile year after year, individual birds included.

Field notes (to add)

• Audio: both folk-transcriptions as a side-by-side clip
• Morph comparison photos (white-striped vs. tan-striped)
• Chickasaw / Choctaw names
• Average arrival date at Memphis-area feeders (eBird data)