Synallaxis propinqua
Silhouette: Abraão B. Leite · PhyloPic
In 3 days ~10% in a week ~30%
The white-bellied spinetail (Mazaria propinqua) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, and Peru. The white-bellied spinetail was originally described in genus Synallaxis. Much later, molecular phylogenetic studies found that it is not closely related to the other members of the genus and it was moved to its own genus Mazaria. It and the chotoy spinetail (Schoeniophylax phryganophilus) are sister species.
The white-bellied spinetail is monotypic: No subspecies are recognized. The white-bellied spinetail is 14.5 to 16 cm (5.7 to 6.3 in) long and weighs 16 to 22 g (0.56 to 0.78 oz). The sexes have the same plumage. Adults have gray lores on an otherwise grayish brown face. Their crown, back, rump, and uppertail coverts are also grayish brown. Their flight feathers are mostly dusky with pale rufous edges on the primaries. Their tail is dull rufous; the feathers are pointed. Their chin and upper throat are white or black with white fringes on the feathers. Their lower throat is black with white on the feather tips. Their breast... Wikipedia →
Recording0:09
Peru · 2008
© dbeadle · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a White-bellied Spinetail sighting in Yasuní National Park on a given day, based on 130 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 275th most-seen of the 533 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June–July, September and December
In those months about 10% of wildlife watchers report a White-bellied Spinetail in Yasuní National Park on a given day, against under 5% in January–May, August and October–November, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most White-bellied Spinetail sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate White-bellied Spinetail sightings, Yasuní National Park ranks 2nd at under 5%. The best odds are in Amacayacu National Natural Park (Colombia, about 20%).
GBIF citizen-science records
It is estimated from how often the White-bellied Spinetail is recorded against all the birds logged in Yasuní National Park (130 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.
