Batrachostomus affinis
Silhouette: Matt Wilkins · PhyloPic
In 3 days ~10% in a week ~20%
Blyth’s frogmouth (Batrachostomus affinis) is a species of bird in the family Podargidae. They are brownish or rufescent brown with a slightly round bill and tail, and have tufts of bristles in front of the eyes and at the base of the bill. Batrachostomus occur from India and Sri Lanka, across mainland southeast Asia and as far as Borneo, Java, and Sumatra. More specifically, the Blyth’s frogmouths are scattered between southeastern Myanmar and Indonesia. Like other frogmouth species, they are insectivorous.
The English zoologist, curator of the Museum of the Asiatic Society of Bengal (Calcutta), and collector Edward Blyth (1810–1873) gave his name to B. affinis. “Frogmouth” simply refers to the frog-like large and extremely wide bills of the birds. In French, the word “podarge” in Podarge de Blyth was given by the naturalist Baron Cuvier, referencing the bird’s short legs and awkward appearance. The term is derived from the Greek word “podargos”, which means “gouty man”.
Blyth’s frogmouth is one of 17 species of frogmouths in the family Podargidae, which includes the three genera Podargus, Rigidipenna, and Batrachostomus. Blyth’s frogmouth is in the genus... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 3 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 4 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 5 | Khao Sok National Park | 🇹🇭 Thailand | |
| 6 | Kaeng Krachan National Park | 🇹🇭 Thailand |
Rare
Under 5% of wildlife watchers report a Blyth's Frogmouth sighting in Cat Tien National Park on a given day, based on 45 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 180th most-seen of the 244 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
December
In that month about 10% of wildlife watchers report a Blyth's Frogmouth in Cat Tien National Park on a given day, against under 5% in January to November, the lowest months. That is one of Cat Tien National Park's driest months, with about 55 mm of rain against 490 mm in July.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Blyth's Frogmouth sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
3rd of 6
Of the 6 parks where we can rate Blyth's Frogmouth sightings, Cat Tien National Park ranks 3rd at under 5%. The best odds are in Khao Luang National Park (Thailand, about 10%) and Danum Valley Conservation Area (Malaysia, under 5%).
Same order: Caprimulgiformes
The closest relatives of the Blyth's Frogmouth that you can see in Cat Tien National Park (order Caprimulgiformes, Nightjars and Allies) are Great Eared-Nightjar (about 30%) and Large-tailed Nightjar (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blyth's Frogmouth is recorded against all the birds logged in Cat Tien National Park (45 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.
