Jacana spinosa
Silhouette: Burton Robert, USFWS · PhyloPic
In 3 days ~10% in a week ~30%
The northern jacana or northern jaçana (Jacana spinosa) is a wader which is known as a resident breeder from coastal Mexico to western Panama, and on Cuba, Jamaica and Hispaniola in the Caribbean. It is sometimes known to breed in Texas, United States, and has also been recorded on several occasions as a vagrant in Arizona. The jacanas are a group of wetland birds, which are identifiable by their huge feet and claws, which enable them to walk on floating vegetation in the shallow lakes that are their preferred habitat. In Jamaica, this bird is also known as the 'Jesus bird', as it appears to walk on water.
The northern jacana was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. He placed it with the coots in the genus Fulica and coined the binomial name Fulica spinosa. Linnaeus based his account on the "spur-winged water hen" that had been described and illustrated in 1743 by the English naturalist George Edwards in his A Natural History of Uncommon Birds. Edwards had borrowed a specimen from the collector Hans Sloane that had been preserved in alcohol. Edwards mistakenly believed his specimen had been collected... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Pedro Sula | 🇭🇳 Honduras | |
| 2 | León | 🇲🇽 México | |
| 3 | San José | 🇨🇷 Costa Rica | |
| 4 | Guadalajara | 🇲🇽 México | |
| 5 | Managua | 🇳🇮 Nicaragua |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Northern Jacana sighting in San José on a given day, based on 1,036 verified sightings from GBIF citizen-science data. It is the 77th most-seen of the 379 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.
October to January
In those months about 10% of wildlife watchers report a Northern Jacana in San José on a given day, against under 5% in February to September, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Northern Jacana 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 5
Of the 5 cities where we can rate Northern Jacana sightings, San José ranks 3rd at under 5%. The best odds are in San Pedro Sula (Honduras, about 10%) and León (México, about 10%).
GBIF citizen-science records
It is estimated from how often the Northern Jacana is recorded against all the birds logged in San José (1,036 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.
