Junco hyemalis
Silhouette: L. Shyamal · PhyloPic
In 3 days ~30% in a week ~60%
The dark-eyed junco (Junco hyemalis) is a species of junco, a group of small, grayish New World sparrows. The species is common across much of temperate North America and in summer it ranges far into the Arctic. It is a variable species, much like the related fox sparrow (Passerella iliaca), and its systematics are still not completely resolved.
The dark-eyed junco was formally described by the Swedish naturalist Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae as Fringilla hyemalis. The description consisted merely of the laconic remark "F[ringilla] nigra, ventre albo. ("A black 'finch' with white belly") and a statement that it came from America. Linnaeus based his description on the "Snow-Bird" that Mark Catesby had described and illustrated in his 1731 The Natural History of Carolina, Florida and the Bahama Islands.
The Bill of this Bird is white: The Breast and Belly white. All the rest of the Body dark grey; but in some places black, inclining to Lead-color. In Virginia and Carolina they appear only in Winter: and in Snow they appear most. In Summer none are seen. Whether they retire and breed in the North (which is most probable) or where they... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seattle | 🇺🇸 United States | |
| 2 | Portland | 🇺🇸 United States | |
| 3 | Vancouver | 🇨🇦 Canada | |
| 4 | San Francisco | 🇺🇸 United States | |
| 5 | Edmonton | 🇨🇦 Canada | |
| 6 | Montreal | 🇨🇦 Canada | |
| 7 | Salt Lake City | 🇺🇸 United States | |
| 8 | Toronto | 🇨🇦 Canada | |
| 9 | Anchorage | 🇺🇸 United States | |
| 10 | Detroit | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Dark-eyed Junco sighting in Big Bend National Park on a given day, based on 612 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 70th most-seen of the 270 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
October to December
In those months about 20% of wildlife watchers report a Dark-eyed Junco in Big Bend National Park on a given day, against under 5% in June to September, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Dark-eyed Junco sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
35th of 41
Of the 41 parks where we can rate Dark-eyed Junco sightings, Big Bend National Park ranks 35th at about 10%. The best odds are in Yosemite National Park (United States, about 80%), Denali National Park (United States, about 80%) and Kluane National Park (Canada, about 80%). All parks ranked.
Same family: Passerellidae
The closest relatives of the Dark-eyed Junco that you can see in Big Bend National Park (family Passerellidae, New World Sparrows) are Canyon Towhee (about 40%), Chipping Sparrow (about 40%) and Black-throated Sparrow (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark-eyed Junco is recorded against all the birds logged in Big Bend National Park (612 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
