Calidris fuscicollis
Silhouette: Edwin Price · PhyloPic
In 3 days <5%
The white-rumped sandpiper (Calidris fuscicollis) is a small migratory shorebird that breeds in the northern tundra of Canada and Alaska. This bird can be difficult to distinguish from other similar tiny shorebirds; these are known collectively as "peeps" or "stints". In flight, it is more easily picked out by its namesake white rump.
The white-rumped sandpiper is a relatively small bird measuring only 15–18 cm (5.9–7.1 in), with a wingspan of 36–38 cm (14–15 in). The top of its body is a dull grey-brown colour and it has a white eye stripe. Its beak is of medium length, thin and dark, and its legs are very dark. This bird is often mistaken with many similar-looking sandpipers that live in its range or along its migration path.
The plumage is much less distinct during the winter; however, during all seasons males and females remain similar in their appearance. In adult breeding plumage, the crown and face have a brownish tinge. The supercilium is pale, there are black feathers on the back and there are grey edges on the wing coverts. The breast and flanks are streaked and the underparts are white. In adult winter plumage, the upperparts are a dark grey and at the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Península Valdés | 🇦🇷 Argentina | |
| 2 | Caroni Swamp | 🇹🇹 Trinidad and Tobago | |
| 3 | Isla del Coco National Park | 🇨🇷 Costa Rica | |
| 4 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 5 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico | |
| 6 | Celestún Biosphere Reserve | 🇲🇽 Mexico | |
| 7 | Gros Morne National Park | 🇨🇦 Canada | |
| 8 | Tierra del Fuego National Park | 🇦🇷 Argentina | |
| 9 | Arrecifes de Cozumel National Park | 🇲🇽 Mexico | |
| 10 | Padre Island National Seashore | 🇺🇸 United States | |
| 11 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 12 | Iberá National Park | 🇦🇷 Argentina | |
| 13 | Acadia National Park | 🇺🇸 United States | |
| 14 | Bastimentos Island National Marine Park | 🇵🇦 Panama | |
| 15 | Tortuguero National Park | 🇨🇷 Costa Rica | |
| 16 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 17 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 18 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | |
| 19 | Point Pelee National Park | 🇨🇦 Canada | |
| 20 | Everglades National Park | 🇺🇸 United States | |
| 21 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 2 | Montevideo | 🇺🇾 Uruguay | |
| 3 | Panama City | 🇵🇦 Panama | |
| 4 | Rio de Janeiro | 🇧🇷 Brazil | |
| 5 | Santos | 🇧🇷 Brazil | |
| 6 | Havana | 🇨🇺 Cuba | |
| 7 | Asuncion | 🇵🇾 Paraguay | |
| 8 | Boston | 🇺🇸 United States | |
| 9 | New York City | 🇺🇸 United States | |
| 10 | Caracas | 🇻🇪 Venezuela |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | National Zoological Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a White-rumped Sandpiper sighting in Buenos Aires on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 253rd most-seen of the 274 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a White-rumped Sandpiper in Buenos Aires on a given day, so our monthly data shows no clear season.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most White-rumped Sandpiper sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 19 cities where we can rate White-rumped Sandpiper sightings, Buenos Aires ranks 16th at under 5%, level with the leaders once rounded. The best odds are in Santa Cruz de la Sierra (Bolivia, under 5%), Montevideo (Uruguay, under 5%) and Panama City (Panama, under 5%).
GBIF citizen-science records
It is estimated from how often the White-rumped Sandpiper is recorded against all the birds logged in Buenos Aires (16 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.
