What is the primary component of the Blackburnian Warbler’s diet, especially when provisioning young?

Answer

Insects and other small arthropods

The species subsists almost entirely on arthropods, including caterpillars, spiders, aphids, beetles, and small wasps, which are essential for feeding nestlings.

What is the primary component of the Blackburnian Warbler’s diet, especially when provisioning young?
speciesbirdornithologyanimalwarbler