The northern silvery-cheeked antshrike (Sakesphoroides niedeguidonae) is a recently described species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to northern Brazilian Caatinga habitats and found almost esclusively north of the São Francisco River. Small populations are also reported to be south of the river at Raso da Catarina.[1] The northern silvery-cheeked antshrike was identified as a separate species and split from the silvery-cheeked antshrike (Sakesphoroides cristatus) in 2024 after review of over a thousand specimens and more than one-hundred sound recordings revealed a clear geographical split between the two groups.[2]
In general northern silvery-cheeked antshrikes are very similar in appearance to the very closely related S. cristatus, with females showing more overt differences than males. Most notably northern silvery-cheeked antshrikes have an overall lighter amber color and show black and white barring down the tail feathers.[3]
Northern silvery-cheeked antshrikes have been recorded flycatching and turning leaf litter for ants, spiders, termites, beetles and caterpillars.[3] They are known to forage in pairs or mixed-species flocks.
Very little is known about the birds breeding biology, however males have been observed defending territory and responding to audio playback.[3] The northern silvery-cheeked antshrike's 'loudsong' is slower, longer, and has many more notes than S. cristatus.
The specific epithet niedeguidonae honors Brazilian archaeologist Niède Guidon, who is credited with exploring prehistoric sites in the Americas in the 1970s.[3]