Progne subis
Silhouette: Andy Wilson · PhyloPic
In 3 days <5%
The purple martin (Progne subis) is a passerine bird in the swallow family Hirundinidae. It is the largest swallow in North America. Despite its name, the purple martin is not truly purple. The dark blackish-blue feathers have an iridescent sheen caused by the diffraction of incident light giving them a bright blue to navy blue or deep purple appearance. In some light, they may even appear green in color.
They are migratory, with their breeding range including all of the eastern United States and southeastern Canada, as well as the coastal Pacific Northwest, Baja California, Arizona, and New Mexico. Most make a brief stopover in the Yucatán Peninsula or Cuba during pre-breeding migration to North America and during post-breeding migration before reaching their overwintering site in South America.
They are known for their speed, agility, and their characteristic mix of rapid, flapping, and gliding flight patterns. When approaching their nesting site, they will dive from the sky at great speeds with their wings tucked, just like the peregrine falcon does when hunting smaller birds.
In 1750 the English naturalist George Edwards included an illustration and a description... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Antonio | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | Houston | 🇺🇸 United States | |
| 4 | Miami | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | Dallas | 🇺🇸 United States | |
| 7 | Seattle | 🇺🇸 United States | |
| 8 | Orlando | 🇺🇸 United States | |
| 9 | Vancouver | 🇨🇦 Canada | |
| 10 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Purple Martin sighting in Calgary on a given day, based on 119 verified sightings from GBIF citizen-science data. It is the 187th most-seen of the 259 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Purple Martin in Calgary on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Purple Martin sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
20th of 29
Of the 29 cities where we can rate Purple Martin sightings, Calgary ranks 20th at under 5%. The best odds are in San Antonio (United States, about 20%), Austin (United States, about 20%) and Houston (United States, about 10%).
Same family: Hirundinidae
The closest relatives of the Purple Martin that you can see in Calgary (family Hirundinidae, Swallows and Martins) are Tree Swallow (about 20%), Northern Rough-winged Swallow (about 10%) and Bank Swallow (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Purple Martin is recorded against all the birds logged in Calgary (119 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.
