Tringa melanoleuca
Silhouette: Andy Wilson · PhyloPic
In 3 days ~10% in a week ~30%
The greater yellowlegs (Tringa melanoleuca) is a large shorebird in the family Scolopacidae. It breeds in central Canada and southern Alaska and winters in southern North America, Central America, the West Indies and South America.
The greater yellowlegs was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it in the genus Scolopax and coined the binomial name Scolopax melanoleuca. Gmelin based his description on the "stone snipe" seen feeding in autumn in Chateau Bay, Labrador, that had been described in 1785 by both the English ornithologist John Latham and by the Welsh naturalist Thomas Pennant. The greater yellowlegs is now placed in the genus Tringa that was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. The name Tringa is the Neo-Latin word given to the green sandpiper by the Italian naturalist Ulisse Aldrovandi in 1603 based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific epithet melanoleuca combines the Ancient Greek melas meaning... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Anchorage | 🇺🇸 United States | |
| 2 | Montevideo | 🇺🇾 Uruguay | |
| 3 | Mesa | 🇺🇸 United States | |
| 4 | San Francisco | 🇺🇸 United States | |
| 5 | Panama City | 🇵🇦 Panama | |
| 6 | Los Angeles | 🇺🇸 United States | |
| 7 | Cochabamba | 🇧🇴 Bolivia | |
| 8 | San Diego | 🇺🇸 United States | |
| 9 | Rosario | 🇦🇷 Argentina | |
| 10 | Calgary | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Greater Yellowlegs sighting in Portland on a given day, based on 1,695 verified sightings from GBIF citizen-science data. It is the 89th most-seen of the 230 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.
August
In that month about 30% of wildlife watchers report a Greater Yellowlegs in Portland on a given day, against under 5% in November to June, the lowest months. That is one of Portland's driest months, with about 20 mm of rain against 250 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Greater Yellowlegs sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
18th of 52
Of the 52 cities where we can rate Greater Yellowlegs sightings, Portland ranks 18th at under 5%. The best odds are in Anchorage (United States, about 30%), Montevideo (Uruguay, about 20%) and Mesa (United States, about 20%).
GBIF citizen-science records
It is estimated from how often the Greater Yellowlegs is recorded against all the birds logged in Portland (1,695 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.
