Passerculus sandwichensis
Silhouette: Caleb M. Gordon · PhyloPic
In 3 days ~10% in a week ~30%
The Savannah sparrow (Passerculus sandwichensis) is a small New World sparrow that is the only member of the genus Passerculus. It is a widespread and abundant species that occupies open grassland habitats in North America.
Over most of its range it is migratory, breeding in Canada and the northern United States while wintering in Mexico and the southern United States. It is a sexually monomorphic species that is quite variable in appearance. Around 17 subspecies are currently recognised. These are divided into several groups, some of which have sometimes been considered as separate species.
The species name sandwichensis is Latin from Sandwich Sound (now Prince William Sound) in southern Alaska from where the first specimen was collected. The common name refers to Savannah, Georgia, where Alexander Wilson observed the species in 1811.
The Savannah sparrow was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the buntings in the genus Emberiza and coined the binomial name Emberiza sandwichensis. Gmelin based his text on the Sandwich bunting that had been... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Diego | 🇺🇸 United States | |
| 2 | Calgary | 🇨🇦 Canada | |
| 3 | Los Angeles | 🇺🇸 United States | |
| 4 | Toluca | 🇲🇽 México | |
| 5 | Seattle | 🇺🇸 United States | |
| 6 | León | 🇲🇽 México | |
| 7 | Chicago | 🇺🇸 United States | |
| 8 | San Francisco | 🇺🇸 United States | |
| 9 | Boston | 🇺🇸 United States | |
| 10 | Vancouver | 🇨🇦 Canada |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Ralph Perkins II Wildlife Center and Woods Garden | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Savannah Sparrow sighting in Mexico City on a given day, based on 653 verified sightings from GBIF citizen-science data. It is the 111th most-seen of the 332 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
September and November–April
In those months about 10% of wildlife watchers report a Savannah Sparrow in Mexico City on a given day, against under 5% in May–August and October, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Savannah Sparrow sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
13th of 35
Of the 35 cities where we can rate Savannah Sparrow sightings, Mexico City ranks 13th at about 10%. The best odds are in San Diego (United States, about 20%), Calgary (Canada, about 10%) and Los Angeles (United States, about 10%).
Same family: Passerellidae
The closest relatives of the Savannah Sparrow that you can see in Mexico City (family Passerellidae, New World Sparrows) are Canyon Towhee (about 60%), Song Sparrow (about 40%) and Chipping Sparrow (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Savannah Sparrow is recorded against all the birds logged in Mexico City (653 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.
