What are the chances of seeing a Dark-sided Flycatcher in Hanoi?
With luck
About 10% of wildlife watchers report a Dark-sided Flycatcher sighting in Hanoi on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 57th most-seen of the 97 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
When is the best time to see a Dark-sided Flycatcher in Hanoi?
September
In that month about 30% of wildlife watchers report a Dark-sided Flycatcher in Hanoi on a given day, against under 5% in April–August and November–February, the lowest months. That is one of Hanoi's wettest months, with about 220 mm of rain against 20 mm in February.
What time of day is best to see a Dark-sided Flycatcher?
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Dark-sided Flycatcher sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Is Hanoi the best place to see a Dark-sided Flycatcher?
Among the best
Of the 23 cities where we can rate Dark-sided Flycatcher sightings, Hanoi ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Qingdao (China, about 10%).
Where does the Dark-sided Flycatcher sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Dark-sided Flycatcher is recorded against all the birds logged in Hanoi (13 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.