Cepora nadina
In 3 days ~40% in a week ~70%
Cepora nadina, the lesser gull, is a small to medium-sized butterfly of the family Pieridae, that is, the yellows and whites. The species was first described by Hippolyte Lucas in 1852. It is native to Sri Lanka, India, Myanmar, Hainan, and southeast Asia.
Male has the upperside ground colour white. Forewing has the basal half of costal margin suffused with greenish yellow and irrorated (sprinkled) sparsely with black scales; apex from the middle of the costa and termen black, the inner margin of the black arched and acutely produced inwards along the veins, the black on the termen narrowed posteriorly and in interspaces 1a and 1 reduced to a mere thread. Hindwing: terminal margin with a broad dark band, due to the markings of the underside that show through by transparency, the darkness accentuated by a slight irroration of black scales; apices of some of the anterior veins black, in some specimens these are dilated and form a narrow anterior black border. Underside: white. Forewing: costal margin and apex very broadly suffused with greenish yellow and irrorated more or less densely with black scales, these latter form also diffuse subterminal... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 2 | Namdapha National Park | 🇮🇳 India | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand |
Possible
About 20% of wildlife watchers report a Lesser Gull sighting in Cat Tien National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 58th most-seen of the 125 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
March
In that month about 40% of wildlife watchers report a Lesser Gull in Cat Tien National Park on a given day, against under 5% in January, April and June–October, the lowest months. That is one of Cat Tien National Park's driest months, with about 30 mm of rain against 490 mm in July.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Lesser Gull sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 5
Of the 5 parks where we can rate Lesser Gull sightings, Cat Tien National Park ranks 4th at about 20%. The best odds are in Royal Manas National Park (Bhutan, about 40%), Namdapha National Park (India, about 40%) and Cuc Phuong National Park (Vietnam, about 40%). All parks ranked.
Same genus: Cepora
The closest relatives of the Lesser Gull that you can see in Cat Tien National Park (genus Cepora) are Orange Gull (about 30%) and Common Gull (butterfly) (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lesser Gull is recorded against all the insects logged in Cat Tien National Park (10 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.
