Amazilia tzacatl
Silhouette: PhyloPic
In 3 days >90%
The rufous-tailed hummingbird (Amazilia tzacatl) is a medium-sized hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found from east-central Mexico through Central America and Colombia into Ecuador and Venezuela.
The rufous-tailed hummingbird was formally described in 1833 by the Mexican naturalist Pablo de La Llave. He placed it in the genus Trochlilus and coined the binomial name Trochilus tzacatl. The rufous-tailed hummingbird is now placed in the genus Amazilia and was introduced in 1843 by the French naturalist René Lesson. The genus name comes from the Inca heroine in Jean-François Marmontel's novel Les Incas, ou la destruction de l'Empire du Pérou. The specific epithet is from Aztec mythology: Tzacatl was a warrior chief.
The rufous-tailed hummingbird has these five recognized subspecies: A. t. handleyi was originally described as a separate species, the Escudo hummingbird. At least one author treated the rufous-tailed hummingbird and the chestnut-bellied hummingbird (Saucerottia... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San José | 🇨🇷 Costa Rica | |
| 2 | Cali | 🇨🇴 Colombia | |
| 3 | Medellín | 🇨🇴 Colombia | |
| 4 | Panama City | 🇵🇦 Panama | |
| 5 | San Pedro Sula | 🇭🇳 Honduras | |
| 6 | Quito | 🇪🇨 Ecuador | |
| 7 | Guayaquil | 🇪🇨 Ecuador | |
| 8 | Bogota | 🇨🇴 Colombia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parque Zoológico Nacional Simón Bolívar | 🇨🇷 Costa Rica |
Very likely
About 70% of wildlife watchers report a Rufous-tailed Hummingbird sighting in San José on a given day, based on 14,038 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 379 birds we can rate there. Over three days the chance rises to over 90%, if each day is a fresh chance.
April and August–January
In those months about 70% of wildlife watchers report a Rufous-tailed Hummingbird in San José on a given day, against about 60% in February–March and May–July, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Rufous-tailed Hummingbird 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 8 cities where we can rate Rufous-tailed Hummingbird sightings, San José has the highest daily chance: about 70%. Next come Cali (Colombia, about 50%) and Medellín (Colombia, about 50%).
GBIF citizen-science records
It is estimated from how often the Rufous-tailed Hummingbird is recorded against all the birds logged in San José (14,038 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.
