I thought the warblers were attracted to the bushes because of the abundance of berries but no; watch how she snatches a winged insect and only eats the abdomen, tossing aside the wings.
Yellow Warblers primarily eat a wide variety of insects including caterpillars, beetles, spiders, mosquitos, and moths. During the fall and winter months especially, they also eat fruits and berries.
Actually, two Yellow Warblers!
Both were hungrily diving through shrub branches hunting for insects. The shrub cover made them challenging to photograph and I wasn’t sure until uploading the photos whether I captured the one eating what looks like a bee.
The two photographed over the weekend were both females. They lack the brown breast streaks of the male as seen in the photo taken several springs ago (see below).
Male Yellow Warbler
Female Yellow Warbler