Mareca strepera
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~30%
The gadwall (Mareca strepera) is a common and widespread dabbling duck in the family Anatidae. The gadwall was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. DNA studies have shown that it is a sister species with the falcated duck; the two are closely related to the three species of wigeons, and all of them have been assigned to the genus Mareca. There are two subspecies:
Mareca strepera strepera (formerly Anas strepera strepera), the common gadwall, described by Linnaeus, is the nominate subspecies. The specific name strepera is Late Latin for "noisy". The etymology of the word gadwall is not known, but the name has been in use since 1666.
The gadwall is 47–58 cm (19–23 in) long with a 78–85 cm (31–33 in) wingspan. The male is slightly larger than the female, weighing on average 990 g (35 oz) against her 850 g (30 oz). The breeding male is patterned grey, with a black rear end, light chestnut wings, and a brilliant white speculum, obvious in flight or at rest. In non... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Anchorage | 🇺🇸 United States | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 4 | Denver | 🇺🇸 United States | |
| 5 | Seattle | 🇺🇸 United States | |
| 6 | Helsinki | 🇫🇮 Finland | |
| 7 | Portland | 🇺🇸 United States | |
| 8 | Amsterdam | 🇳🇱 Netherlands | |
| 9 | Manchester | 🇬🇧 United Kingdom | |
| 10 | Birmingham | 🇬🇧 United Kingdom |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parque y Zoológico Nacional Arquitecto Manuel Valverde Podestá | 🇩🇴 Dominican Republic | |
| 2 | Yerevan Zoo | 🇦🇲 Armenia | |
| 3 | Saint Louis Zoo | 🇺🇸 United States | |
| 4 | Berlin Zoological Garden | 🇩🇪 Germany | |
| 5 | Oregon Zoo | 🇺🇸 United States | |
| 6 | Inokashira Park Zoo | 🇯🇵 Japan | |
| 7 | L'Oceanogràfic | 🇪🇸 Spain | |
| 8 | Zoo Koki (Parque zoológico y botánico) | 🇪🇸 Spain | |
| 9 | Aquarium Berlin | 🇩🇪 Germany | |
| 10 | Zooparque Itatiba | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Gadwall sighting in Jaipur on a given day, based on 75 verified sightings from GBIF citizen-science data. It is the 96th most-seen of the 214 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
February
In that month about 20% of wildlife watchers report a Gadwall in Jaipur on a given day, against under 5% in April to November, the lowest months. That is one of Jaipur's driest months, with about 10 mm of rain against 170 mm in August.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Gadwall sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
54th of 120
Of the 120 cities where we can rate Gadwall sightings, Jaipur ranks 54th at about 10%. The best odds are in Anchorage (United States, about 50%), London (United Kingdom, about 30%) and Rotterdam [The Hague] (Netherlands, about 30%).
Same family: Anatidae
The closest relatives of the Gadwall that you can see in Jaipur (family Anatidae, Ducks, Geese, and Swans) are Indian Spot-billed Duck (about 20%), Comb Duck (about 10%) and Northern Shoveler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gadwall is recorded against all the birds logged in Jaipur (75 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.
