Lampornis clemenciae
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~20% in a week ~30%
The blue-throated mountaingem, also known as the blue-throated mountain-gem or blue-throated hummingbird (Lampornis clemenciae) is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in the United States and Mexico.
In the 19th century the blue-throated mountaingem was placed several different genera, and in the early 20th century in its own genus Cyanolaemus. Since the mid-1900s it has been in its present genus Lampornis. The blue-throated mountaingem is the largest hummingbird found in the United States. It is 11.2 to 12.8 cm (4.4 to 5.0 in) long. Males weigh an average of 8.4 g (0.30 oz) and females 6.8 g (0.24 oz). Both sexes have a medium-length black bill, though there is some variation among the subspecies and females' bills are longer than males'. Both sexes of all subspecies have a conspicuous white stripe behind the eye and a narrower stripe extending backward from the corner of its bill under a blackish cheek patch.
The nominate subspecies is the largest and has the longest bill. Adult males have... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico | |
| 2 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 3 | Big Bend National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toluca | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México | |
| 3 | Guadalajara | 🇲🇽 México | |
| 4 | Monterrey | 🇲🇽 México |
With luck
About 10% of wildlife watchers report a Blue-throated Hummingbird sighting in Big Bend National Park on a given day, based on 246 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 118th most-seen of the 270 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June and August
In those months about 20% of wildlife watchers report a Blue-throated Hummingbird in Big Bend National Park on a given day, against under 5% in September to March, the lowest months. Those are among Big Bend National Park's wettest months, with about 35 mm of rain a month against 10 mm in April.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Blue-throated 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.
3rd of 3
Of the 3 parks where we can rate Blue-throated Hummingbird sightings, Big Bend National Park ranks 3rd at about 10%. The best odds are in Reserva de la Biosfera Mariposa Monarca (Mexico, about 20%) and Cumbres de Monterrey National Park (Mexico, about 20%).
Same family: Trochilidae
The closest relatives of the Blue-throated Hummingbird that you can see in Big Bend National Park (family Trochilidae, Hummingbirds) are Black-chinned Hummingbird (about 10%) and Broad-tailed Hummingbird (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue-throated Hummingbird is recorded against all the birds logged in Big Bend National Park (246 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.
