What are the chances of seeing a Cape May Warbler in Isle Royale National Park?
Possible
About 30% of wildlife watchers report a Cape May Warbler sighting in Isle Royale National Park on a given day, based on 182 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 25th most-seen of the 105 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
What time of day is best to see a Cape May Warbler?
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Cape May Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Isle Royale National Park the best place to see a Cape May Warbler?
4th of 30
Of the 30 parks where we can rate Cape May Warbler sightings, Isle Royale National Park ranks 4th at about 30%. The best odds are in Point Pelee National Park (Canada, about 40%), Ciénaga de Zapata (Cuba, about 40%) and Los Haitises National Park (Dominican Republic, about 30%).
Which relatives of the Cape May Warbler live in Isle Royale National Park?
Same genus: Setophaga
The closest relatives of the Cape May Warbler that you can see in Isle Royale National Park (genus Setophaga, Setophaga Warblers) are Yellow-rumped Warbler (about 70%), American Redstart (about 60%) and Black-throated Green Warbler (about 50%), with each one's daily chance of a sighting.
Where does the Cape May Warbler sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Cape May Warbler is recorded against all the birds logged in Isle Royale National Park (182 verified sightings from 2019 to 2026), 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.