Sphyrapicus varius
Silhouette: Nancy Wyman (photo), John E. McCormack, Michael G. Harvey, Brant C. Faircloth, Nicholas G. Crawford, Travis C. Glenn, Robb T. Brumfield & T. Michael Keesey · PhyloPic
In 3 days ~10% in a week ~20%
The yellow-bellied sapsucker (Sphyrapicus varius) is a medium-sized woodpecker that breeds in Canada and the northeastern United States. The yellow-bellied sapsucker was described and illustrated using a hand-coloured plate by the English naturalist Mark Catesby in his The Natural History of Carolina, Florida and the Bahama Islands which was published between 1729 and 1732. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he included the yellow-bellied sapsucker, coined the binomial name Picus varius and cited Catesby's book. The specific epithet varius is the Latin word meaning "various", "diverse" or "variegated". Linnaeus specified the type locality as America septentrionalis (North America) but the locality is now restricted to South Carolina. The yellow-bellied sapsucker is now placed in the genus Sphyrapicus that was erected in 1858 by the American naturalist Spencer Baird with the yellow-bellied sapsucker as the type species. Within the genus Sphyrapicus, the yellow-bellied sapsucker is sister to a clade containing the red-breasted sapsucker (Sphyrapicus ruber) and the red-naped sapsucker (Sphyrapicus nuchalis... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | New York City | 🇺🇸 United States | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | Puebla | 🇲🇽 México | |
| 4 | Baltimore | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States | |
| 6 | Havana | 🇨🇺 Cuba | |
| 7 | Montreal | 🇨🇦 Canada | |
| 8 | Miami | 🇺🇸 United States | |
| 9 | Orlando | 🇺🇸 United States | |
| 10 | Chicago | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Ralph Perkins II Wildlife Center and Woods Garden | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Yellow-bellied Sapsucker sighting in Boston on a given day, based on 1,461 verified sightings from GBIF citizen-science data. It is the 111th most-seen of the 283 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
October to January
In those months about 10% of wildlife watchers report a Yellow-bellied Sapsucker in Boston on a given day, against under 5% in February to September, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Yellow-bellied Sapsucker sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
19th of 36
Of the 36 cities where we can rate Yellow-bellied Sapsucker sightings, Boston ranks 19th at under 5%. The best odds are in New York City (United States, about 10%), Philadelphia (United States, about 10%) and Puebla (México, about 10%).
Same family: Picidae
The closest relatives of the Yellow-bellied Sapsucker that you can see in Boston (family Picidae, Woodpeckers) are Downy Woodpecker (about 60%), Red-bellied Woodpecker (about 40%) and Northern Flicker (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-bellied Sapsucker is recorded against all the birds logged in Boston (1,461 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.
