Glaucis aeneus
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~10% in a week ~30%
The bronzy hermit (Glaucis aeneus) is a species of hummingbird in the family Trochilidae. It is found in Colombia, Costa Rica, Ecuador, Honduras, Nicaragua, and Panama. The bronzy hermit and the rufous-breasted hermit (G. hirsutus) have been considered conspecific but now are treated as a superspecies. The bronzy hermit is monotypic although the separate Central and South American populations have sometimes been treated as subspecies.
The bronzy hermit is 9 to 10 cm (3.5 to 3.9 in) long. Males weigh 3 to 6.5 g (0.11 to 0.23 oz) and females 3 to 6 g (0.11 to 0.21 oz). The male's bill is decurved and the maxilla has serrated edges. The female's bill has more curve and no serrations. The sexes' plumages are alike, with bronzy or coppery green upperparts, deep buff thoat and breast, and pale buff belly. The face has a white "moustache" and is otherwise dusky. The upperside of the tail is gray-green with white tips and the underside reddish near the body, blackish in the middle, and white at the tips. The Central American population has slightly longer wings than the South American but their plumages are identical. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bastimentos Island National Marine Park | 🇵🇦 Panama | |
| 2 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 3 | Gandoca-Manzanillo Wildlife Refuge | 🇨🇷 Costa Rica | |
| 4 | Tortuguero National Park | 🇨🇷 Costa Rica | |
| 5 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 6 | Corcovado National Park | 🇨🇷 Costa Rica | |
| 7 | Cahuita National Park | 🇨🇷 Costa Rica | |
| 8 | Marino Ballena National Park | 🇨🇷 Costa Rica | |
| 9 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 10 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 11 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 12 | Carara National Park | 🇨🇷 Costa Rica | |
| 13 | Manuel Antonio National Park | 🇨🇷 Costa Rica | |
| 14 | Volcán Barú National Park | 🇵🇦 Panama | |
| 15 | Poás Volcano National Park | 🇨🇷 Costa Rica |
Rare
Under 5% of wildlife watchers report a Bronzy Hermit sighting in Corcovado National Park on a given day, based on 138 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 176th most-seen of the 332 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.
May, July–October and December
In those months about 10% of wildlife watchers report a Bronzy Hermit in Corcovado National Park on a given day, against under 5% in January–April, June and November, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Bronzy Hermit sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 15
Of the 15 parks where we can rate Bronzy Hermit sightings, Corcovado National Park ranks 6th at under 5%. The best odds are in Bastimentos Island National Marine Park (Panama, about 20%), Piedras Blancas National Park (Costa Rica, about 10%) and Gandoca-Manzanillo Wildlife Refuge (Costa Rica, about 10%).
Same family: Trochilidae
The closest relatives of the Bronzy Hermit that you can see in Corcovado National Park (family Trochilidae, Hummingbirds) are Long-billed Hermit (about 30%), Charming Hummingbird (about 30%) and Rufous-tailed Hummingbird (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bronzy Hermit is recorded against all the birds logged in Corcovado National Park (138 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.
