Elanus leucurus
Silhouette: Catherine Yasuda · PhyloPic
In 3 days ~10% in a week ~30%
The white-tailed kite (Elanus leucurus) is a small raptor found in South America and parts of western North America. It replaces the related Old World black-winged kite in its native range. The white-tailed kite was described in 1818 by French ornithologist Louis Pierre Vieillot under the binomial name Milvus leucurus, with the type locality as Paraguay. It is now one of four species in the genus Elanus, which was introduced in 1809 by French zoologist Jules-César Savigny. The word Elanus is from Ancient Greek elanos for a "kite". The specific epithet leucurus is from the Ancient Greek leukouros for "white-tailed": leukos is "white" and oura is "tail".
For some recent decades, it was lumped with the black-winged kite of Europe and Africa as Elanus caeruleus and was collectively called black-shouldered kite.[4] However, the American Ornithologists' Union accepted a more recent argument that the white-tailed kite differed from the Old World species in size, shape, plumage, and behavior, and that these differences were sufficient to warrant full species status.[5] Thus, the white-tailed kite was returned to its original name. Meanwhile, the Old World E. caeruleus is once... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bogota | 🇨🇴 Colombia | |
| 2 | Toluca | 🇲🇽 México | |
| 3 | León | 🇲🇽 México | |
| 4 | San Pedro Sula | 🇭🇳 Honduras | |
| 5 | Puebla | 🇲🇽 México | |
| 6 | Sacramento | 🇺🇸 United States | |
| 7 | San José | 🇨🇷 Costa Rica | |
| 8 | San Francisco | 🇺🇸 United States | |
| 9 | Monterrey | 🇲🇽 México | |
| 10 | Curitiba | 🇧🇷 Brazil |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | California Raptor Center | 🇺🇸 United States | |
| 2 | Orange County Zoo | 🇺🇸 United States | |
| 3 | Lindsay Wildlife Experience | 🇺🇸 United States | |
| 4 | Cascades Raptor Center | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a White-tailed Kite sighting in San José on a given day, based on 1,037 verified sightings from GBIF citizen-science data. It is the 76th most-seen of the 379 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 December–March
In those months about 10% of wildlife watchers report a White-tailed Kite in San José on a given day, against under 5% in April–August and October–November, the lowest months. Those are among San José's driest months, with about 85 mm of rain a month against 300 mm in October.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most White-tailed Kite sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 26
Of the 26 cities where we can rate White-tailed Kite sightings, San José ranks 7th at about 10%. The best odds are in Bogota (Colombia, about 30%), Toluca (México, about 20%) and León (México, about 20%).
Same family: Accipitridae
The closest relatives of the White-tailed Kite that you can see in San José (family Accipitridae, Hawks, Eagles, and Kites) are Gray-lined Hawk (about 20%) and Short-tailed Hawk (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-tailed Kite is recorded against all the birds logged in San José (1,037 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.
