Glyphorynchus spirurus
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
The wedge-billed woodcreeper (Glyphorynchus spirurus) is a sub-oscine passerine bird in subfamily Dendrocolaptinae of the ovenbird family Furnariidae. It is found in Mexico, Central America, Brazil, Bolivia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The wedge-billed woodcreeper is the only member of its genus. It has these 13 subspecies that are sorted into three groups and a species by the Clements taxonomy: "spirurus" group "cuneatus" group The groups differ vocally; that and plumage and genetic differences among the subspecies suggest that the wedge-billed woodcreeper is actually more than one species.
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Possible
About 20% of wildlife watchers report a Wedge-billed Woodcreeper sighting in Amacayacu National Natural Park on a given day, based on 134 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 66th most-seen of the 436 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
January
In that month about 40% of wildlife watchers report a Wedge-billed Woodcreeper in Amacayacu National Natural Park on a given day, against under 5% in July–August and October, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Wedge-billed Woodcreeper sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 41
Of the 41 parks where we can rate Wedge-billed Woodcreeper sightings, Amacayacu National Natural Park ranks 8th at about 20%. The best odds are in Brownsberg Nature Park (Suriname, about 40%), Braulio Carrillo National Park (Costa Rica, about 30%) and Tenorio Volcano National Park (Costa Rica, about 30%). All parks ranked.
Same family: Furnariidae
The closest relatives of the Wedge-billed Woodcreeper that you can see in Amacayacu National Natural Park (family Furnariidae, Ovenbirds and Woodcreepers) are Buff-throated Woodcreeper (about 30%), Lesser Hornero (about 20%) and White-bellied Spinetail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Wedge-billed Woodcreeper is recorded against all the birds logged in Amacayacu National Natural Park (134 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.
