Orthotomus derbianus
In 3 days ~40% in a week ~70%
The gray-backed tailorbird (Orthotomus derbianus) is a species of bird formerly placed in the "Old World warbler" assemblage, but now placed in the family Cisticolidae. It is endemic to the Philippines and found only on the islands of Luzon and Catanduanes. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manila | 🇵🇭 Philippines |
Possible
About 20% of wildlife watchers report a Gray-backed Tailorbird sighting in Manila on a given day, based on 553 verified sightings from GBIF citizen-science data. It is the 40th most-seen of the 191 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Gray-backed Tailorbird in Manila on a given day, against about 10% in March–April, July and December–January, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Gray-backed Tailorbird sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Manila, in our data
Manila is the only city on Wallace's Line with enough records to rate Gray-backed Tailorbird sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Gray-backed Tailorbird is recorded against all the birds logged in Manila (553 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.
