What are the chances of seeing a Black-and-white Warbler in Portland?
Rare
Under 5% of wildlife watchers report a Black-and-white Warbler sighting in Portland on a given day, based on 171 verified sightings from GBIF citizen-science data. It is the 168th most-seen of the 230 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
When is the best time to see a Black-and-white Warbler in Portland?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black-and-white Warbler in Portland on a given day, so our monthly data shows no clear season.
What time of day is best to see a Black-and-white Warbler?
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Black-and-white Warbler sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Is Portland the best place to see a Black-and-white Warbler?
41st of 45
Of the 45 cities where we can rate Black-and-white Warbler sightings, Portland ranks 41st at under 5%. The best odds are in Havana (Cuba, about 30%), Miami (United States, about 30%) and Santo Domingo (Dominican Republic, about 30%).
Which relatives of the Black-and-white Warbler live in Portland?
Same family: Parulidae
The closest relatives of the Black-and-white Warbler that you can see in Portland (family Parulidae, New World Warblers) are Yellow-rumped Warbler (about 30%), Common Yellowthroat (about 10%) and Audubon's Warbler (about 10%), with each one's daily chance of a sighting.
Where does the Black-and-white Warbler sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Black-and-white Warbler is recorded against all the birds logged in Portland (171 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.