Haemorhous cassinii
Silhouette: Andy Wilson · PhyloPic
In 3 days <5% in a week ~10%
Cassin's finch (Haemorhous cassinii) is a bird in the finch family, Fringillidae. This species and the other "American rosefinches" are placed in the genus Haemorhous. This bird was named after John Cassin, who was a curator at the Philadelphia Academy of Natural Sciences.
Measurements: Length: 6.3 in (16 cm) Weight: 0.8–1.2 oz (24–34 g) Wingspan: 9.8–10.6 in (25–27 cm) Adults have a short forked brown tail and brown wings. They have a longer bill than the purple finch. Adult males are raspberry red on the head, breast, back and rump; their back and under-tail are streaked. Adult females have light brown upper-parts and light underparts with brown streaks throughout; their facial markings are less distinct than those of the female purple finch. They can have brown, red, and white eyes.
Their breeding habitat is coniferous forest in mountains of western North America as far south as northern New Mexico and Arizona; also Southern California near Baja California. They nest in large conifers. They move to lower elevations in winter.
Northernmost breeding birds migrate south, as do some birds throughout the range of the species... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yosemite National Park | 🇺🇸 United States | |
| 2 | Rocky Mountain National Park | 🇺🇸 United States | |
| 3 | Yellowstone National Park | 🇺🇸 United States | |
| 4 | Zion National Park | 🇺🇸 United States | |
| 5 | Glacier National Park | 🇺🇸 United States | |
| 6 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 7 | Grand Teton National Park | 🇺🇸 United States | |
| 8 | Grand Canyon National Park | 🇺🇸 United States | |
| 9 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 10 | Death Valley National Park | 🇺🇸 United States | |
| 11 | Banff National Park | 🇨🇦 Canada | |
| 12 | Saguaro National Park | 🇺🇸 United States | |
| 13 | Big Bend National Park | 🇺🇸 United States | |
| 14 | Olympic National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Salt Lake City | 🇺🇸 United States | |
| 2 | Anchorage | 🇺🇸 United States | |
| 3 | Denver | 🇺🇸 United States | |
| 4 | Edmonton | 🇨🇦 Canada | |
| 5 | Las Vegas | 🇺🇸 United States | |
| 6 | Sacramento | 🇺🇸 United States | |
| 7 | Los Angeles | 🇺🇸 United States | |
| 8 | Phoenix | 🇺🇸 United States | |
| 9 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Cassin's Finch sighting in Denver on a given day, based on 881 verified sightings from GBIF citizen-science data. It is the 129th most-seen of the 299 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
January
In that month about 10% of wildlife watchers report a Cassin's Finch in Denver on a given day, against under 5% in February to December, the lowest months. That is one of Denver's driest months, with about 15 mm of rain against 60 mm in July.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Cassin's Finch sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 9
Of the 9 cities where we can rate Cassin's Finch sightings, Denver ranks 3rd at under 5%. The best odds are in Salt Lake City (United States, about 10%) and Anchorage (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Cassin's Finch is recorded against all the birds logged in Denver (881 verified sightings), 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.
