Certhia americana
Silhouette: Andy Wilson · PhyloPic
In 3 days ~60% in a week ~90%
The brown creeper (Certhia americana), also known as the American treecreeper, is a small songbird, the only North American member of the treecreeper family Certhiidae. Adults are brown on the upper parts with light spotting, resembling a piece of tree bark, with white underparts. They have a long thin bill with a slight downward curve and a long stiff tail used for support as the bird creeps upwards. The male creeper has a slightly larger bill than the female. Brown creepers are smaller than white-breasted nuthatches but larger than golden-crowned kinglets.
Measurements: Length: 4.7–5.5 in (12–14 cm) Weight: 0.2–0.3 oz (5.7–8.5 g) Wingspan: 6.7–7.9 in (17–20 cm) Its voice includes single very high pitched, short, often insistent, piercing calls; see, or swee. The song often has a cadence like; pee pee willow wee or see tidle swee, with notes similar to the calls. Creepers in California have songs of four to nine syllables, except in the San Bernardino Mountains, where there are as many as nine to thirteen syllables per song, but within the same two second time frame.
This species's avoidance of edges, cryptic plumage, and high-pitched vocalizations contribute to... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States | |
| 2 | Seattle | 🇺🇸 United States | |
| 3 | Vancouver | 🇨🇦 Canada | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | San Francisco | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | Toronto | 🇨🇦 Canada | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 10 | Detroit | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report a Brown Creeper sighting in Seattle on a given day, based on 17,205 verified sightings from GBIF citizen-science data. It is the 32nd most-seen of the 271 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May to October
In those months about 30% of wildlife watchers report a Brown Creeper in Seattle on a given day, against about 20% in November to April, the lowest months. Those are among Seattle's driest months, with about 60 mm of rain a month against 190 mm in November.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Brown Creeper sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 27 cities where we can rate Brown Creeper sightings, Seattle ranks 2nd at about 30%, level with the leaders once rounded. The best odds are in Portland (United States, about 30%).
Same order: Passeriformes
The closest relatives of the Brown Creeper that you can see in Seattle (order Passeriformes, Perching Birds) are American Crow (about 90%), Song Sparrow (about 80%) and Black-capped Chickadee (about 80%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown Creeper is recorded against all the birds logged in Seattle (17,205 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.
