White-bellied Spinetail

White-bellied Spinetail

Synallaxis propinqua

Silhouette: Abraão B. Leite · PhyloPic

Daily sighting probability ~20% · Possible
at Amacayacu National Natural Park

In 3 days ~40% in a week ~70%

99 Verified sightings at Amacayacu National Natural Park From 2019 to 2026
229 In all 2 parks
June Best month
☀️ Diurnal When it's spotted

About the White-bellied Spinetail

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 →

Sounds

Recording0:09

Peru · 2008

© dbeadle · iNaturalist · CC BY-NC 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Amacayacu National Natural Park 🇨🇴 Colombia
~20%
2 Yasuní National Park 🇪🇨 Ecuador
<5%

Before you go

What are the chances of seeing a White-bellied Spinetail in Amacayacu National Natural Park?

Possible

About 20% of wildlife watchers report a White-bellied Spinetail sighting in Amacayacu National Natural Park on a given day, based on 99 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 94th most-seen of the 436 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.

When is the best time to see a White-bellied Spinetail in Amacayacu National Natural Park?

June and August

In those months about 30% of wildlife watchers report a White-bellied Spinetail in Amacayacu National Natural Park on a given day, against under 5% in January, the lowest month.

What time of day is best to see a White-bellied Spinetail?

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.

Is Amacayacu National Natural Park the best place to see a White-bellied Spinetail?

Yes

Of the 2 parks where we can rate White-bellied Spinetail sightings, Amacayacu National Natural Park has the highest daily chance: about 20%. Next come Yasuní National Park (Ecuador, under 5%).

Where does the White-bellied Spinetail sighting chance come from?

GBIF citizen-science records

It is estimated from how often the White-bellied Spinetail is recorded against all the birds logged in Amacayacu National Natural Park (99 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.

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