Cardellina canadensis
Silhouette: Andy Wilson · PhyloPic
In 3 days <5% in a week ~10%
The Canada warbler (Cardellina canadensis) is a small boreal songbird of the New World warbler family (Parulidae). It summers in Canada and northeastern United States and winters in northern South America. In 1760 the French zoologist Mathurin Jacques Brisson included a description of the Canada warbler in his Ornithologie based on a specimen collected in Canada. He used the French name Le gobe-mouche cendré de Canada and the Latin name Muscicapa Canadensis Cinerea. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the Canada warbler. Linnaeus included a brief description, coined the binomial name Muscicapa canadensis, and cited Brisson's work. The species is now placed in the genus Cardellina that was introduced by the French naturalist Charles Lucien Bonaparte in 1850. The species is monotypic.
The Canada warbler is sometimes called the "necklaced warbler... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States | |
| 2 | Bogota | 🇨🇴 Colombia | |
| 3 | New York City | 🇺🇸 United States | |
| 4 | Medellín | 🇨🇴 Colombia | |
| 5 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 6 | Houston | 🇺🇸 United States | |
| 7 | Cali | 🇨🇴 Colombia | |
| 8 | Austin | 🇺🇸 United States | |
| 9 | Baltimore | 🇺🇸 United States | |
| 10 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Canada Warbler sighting in San José on a given day, based on 243 verified sightings from GBIF citizen-science data. It is the 147th most-seen of the 379 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.
September and October
In those months about 10% of wildlife watchers report a Canada Warbler in San José on a given day, against under 5% in November to August, the lowest months. Those are among San José's wettest months, with about 280 mm of rain a month against 20 mm in February.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Canada Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 31 cities where we can rate Canada Warbler sightings, San José ranks 14th at under 5%, level with the leaders once rounded. The best odds are in Chicago (United States, under 5%), Bogota (Colombia, under 5%) and New York City (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Canada Warbler is recorded against all the birds logged in San José (243 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.
