Hamadryas februa
In 3 days ~40% in a week ~70%
Hamadryas februa, the gray (or grey) cracker, is a species of cracker butterfly in the family Nymphalidae. It is found from Argentina north through tropical America to Mexico. Rare strays can be found up to the lower Rio Grande Valley in southern Texas. The habitat consists of subtropical forests, forest edges and cultivated areas with trees.
The wingspan is 70–86 mm. Adults are on wing year round in the tropics and from August to October in southern Texas. They feed on sap and rotting fruit. The larvae feed on Dalechampia and Tragia species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Machalilla National Park | 🇪🇨 Ecuador | |
| 2 | Los Haitises National Park | 🇩🇴 Dominican Republic | |
| 3 | Iguazú National Park | 🇦🇷 Argentina | |
| 4 | Iguaçu National Park | 🇧🇷 Brazil | |
| 5 | Biotopo Cerro Cahuí | 🇬🇹 Guatemala | |
| 6 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 7 | Masaya Volcano National Park | 🇳🇮 Nicaragua | |
| 8 | Cañón del Sumidero National Park | 🇲🇽 Mexico | |
| 9 | Lago de Yojoa | 🇭🇳 Honduras | |
| 10 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | |
| 11 | Cerro Azul Meámbar National Park | 🇭🇳 Honduras | |
| 12 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | |
| 13 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Pedro Sula | 🇭🇳 Honduras | |
| 2 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 3 | Santo Domingo | 🇩🇴 Dominican Republic | |
| 4 | Recife | 🇧🇷 Brazil | |
| 5 | João Pessoa | 🇧🇷 Brazil | |
| 6 | Maceió | 🇧🇷 Brazil | |
| 7 | Fortaleza | 🇧🇷 Brazil | |
| 8 | Vitória | 🇧🇷 Brazil | |
| 9 | São Luís | 🇧🇷 Brazil | |
| 10 | Asuncion | 🇵🇾 Paraguay |
With luck
About 10% of wildlife watchers report a Gray Cracker sighting in Fortaleza on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 30th most-seen of the 112 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.
April
In that month about 30% of wildlife watchers report a Gray Cracker in Fortaleza on a given day, against under 5% in May, September and November–January, the lowest months. That is one of Fortaleza's wettest months, with about 240 mm of rain against almost none in September.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Gray Cracker sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 22
Of the 22 cities where we can rate Gray Cracker sightings, Fortaleza ranks 7th at about 10%. The best odds are in San Pedro Sula (Honduras, about 20%), Santa Cruz de la Sierra (Bolivia, about 20%) and Santo Domingo (Dominican Republic, about 20%).
Same genus: Hamadryas
The closest relatives of the Gray Cracker that you can see in Fortaleza (genus Hamadryas, Cracker Butterflies) are Variable Cracker (about 30%) and Red Cracker (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray Cracker is recorded against all the insects logged in Fortaleza (14 verified sightings), 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.
