09/09/2026
🐦 Little Brown Birds, Part 2 — Meet the Fox Sparrow!
Rudy Darling is back with another installment of his LBB series, and this time he’s talking about one of his favorite sparrows: the Fox Sparrow.
“One of my favorite sparrows is the Fox Sparrow because they are so spiffy looking.”
He’s right. Fox Sparrows are fairly easy to distinguish from most other sparrows by their large size, rusty tails, and heavy streaking underneath that often comes together across the breast.
Now for the big but…
No, they do not have big butts. 😂
The “big” comes from the fact that there are at least 18 recognized subspecies of Fox Sparrow — although fortunately for the rest of us, they can be grouped into four types that can be distinguished in the field. And only two are common in our area. Phew!
Here’s the local Fox Sparrow lineup:
🟤 Thick-billed Fox Sparrow — Breeds in the high Sierra, including right here in the Sierra Foothills Audubon region. Look for them in mountain chaparral. They have a big gray bill and a sharp call similar to a California Towhee. Their song can sound remarkably like a Green-tailed Towhee — enough to fool experienced birders and even Merlin!
🟤 Sooty (Pacific) Fox Sparrow — Our most common winter Fox Sparrow visitor. These birds migrate south from coastal breeding grounds and can be found in riparian areas and wetland thickets around the Sierra foothills.
🟤 Red (Taiga) Fox Sparrow — Breeds in the taiga (who’d have thought? 😉) and winters mostly east of the Rockies, though a few make their way west.
🟤 Slate-colored Fox Sparrow — Breeds inland from British Columbia south into Utah and Nevada. Only a rare few spend winter in the Sierra.
So when you spot a large, heavily streaked sparrow with a rusty tail this winter, take a closer look. It just might be a Fox Sparrow — and possibly one of several different Fox Sparrow types!
📸 Photos & story by Rudy Darling
💢 And if you're still reading Pop Quiz Time!
There are three photos of Thick-billed Sparrows and one photo of a Sooty (or Pacific) Fox Sparrow in this carousel. Can you tell which one is the Sooty? Slide 1, 2, 3, or 4?