Black-throated blue warbler,
Still a shortage of birds in the yard, not seeing any accipiters lurking around.
Even the squirrels are staying away. Strange.
The Black-throated Blue Warbler is an expert catcher of flies, pursues insects to a considerable distance in all directions, and in seizing them snaps its bill so as to produce a clicking sound. It now and then alights on a low plant and moves along the branches searching for pupae, ants, and insects.
source - Audubon-org
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