Amazilia tzacatl
Silhouette: PhyloPic
In 3 days ~60% in a week ~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 |
Possible
About 30% of wildlife watchers report a Rufous-tailed Hummingbird sighting in Utría National Natural Park on a given day, based on 34 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 38th most-seen of the 154 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
July and August
In those months about 40% of wildlife watchers report a Rufous-tailed Hummingbird in Utría National Natural Park on a given day, against about 10% in October, the lowest month. April, June and December have too few records to rate.
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.
30th of 48
Of the 48 parks where we can rate Rufous-tailed Hummingbird sightings, Utría National Natural Park ranks 30th at about 30%. The best odds are in Cerro Azul Meámbar National Park (Honduras, about 70%), Tenorio Volcano National Park (Costa Rica, about 70%) and Arenal Volcano National Park (Costa Rica, about 70%). All parks ranked.
Same family: Trochilidae
The closest relatives of the Rufous-tailed Hummingbird that you can see in Utría National Natural Park (family Trochilidae, Hummingbirds) are Humboldt's Sapphire (about 40%), Blue-chested Hummingbird (about 30%) and Violet-crowned Woodnymph (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rufous-tailed Hummingbird is recorded against all the birds logged in Utría National Natural Park (34 verified sightings from 2019 to 2026), 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.
