Catharus guttatus
Silhouette: Andy Wilson · PhyloPic
In 3 days ~40% in a week ~70%
The hermit thrush (Catharus guttatus) is a medium-sized North American thrush. It is not very closely related to the other North American migrant species of Catharus, but rather to the Mexican russet nightingale-thrush. The specific name guttatus is Latin for "spotted", though historically this species has been given 17 additional species or subspecies names by various authors, now all treated as synonyms.
This species measures 15 to 18 cm (5.9 to 7.1 in) in length, spans 25 to 30 cm (9.8 to 11.8 in) across the wings and weighs 18 to 37 g (0.63 to 1.31 oz). Among standard measurements, the wing chord is 7.8 to 11.1 cm (3.1 to 4.4 in), the bill is 1.6 to 1.9 cm (0.63 to 0.75 in) and the tarsus is 2.7 to 3.3 cm (1.1 to 1.3 in). It is more compact and stockier than other North American Catharus thrushes, with relatively longer wings. The hermit thrush has the white-dark-white underwing pattern characteristic of Catharus thrushes. Adults are mainly brown on the upperparts, with reddish tails. The underparts are white with dark spots on the breast and grey or brownish flanks. They have pink legs and a white eye ring. Birds in the east are more olive-brown... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Francisco | 🇺🇸 United States | |
| 2 | New York City | 🇺🇸 United States | |
| 3 | Sacramento | 🇺🇸 United States | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | Toronto | 🇨🇦 Canada | |
| 6 | Montreal | 🇨🇦 Canada | |
| 7 | Baltimore | 🇺🇸 United States | |
| 8 | Washington | 🇺🇸 United States | |
| 9 | Tijuana | 🇲🇽 México | |
| 10 | Los Angeles | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Arizona-Sonora Desert Museum | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Hermit Thrush sighting in San Francisco on a given day, based on 19,294 verified sightings from GBIF citizen-science data. It is the 52nd most-seen of the 375 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
October to February
In those months about 30% of wildlife watchers report a Hermit Thrush in San Francisco on a given day, against under 5% in May to September, the lowest months. Those are among San Francisco's wettest months, with about 75 mm of rain a month against almost none in July.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Hermit Thrush sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 38 cities where we can rate Hermit Thrush sightings, San Francisco has the highest daily chance: about 20%. Next come New York City (United States, about 20%) and Sacramento (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Hermit Thrush is recorded against all the birds logged in San Francisco (19,294 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.
