Behavior

Vireos are usually solitary, or they appear as a breeding pair or family group. They sometimes participate in mixed-species foraging flocks during the nonbreeding season. They are deliberate but active birds. Their song is generally loud and melodic, and consists of several repeated phrases. Songs are varied and rather complex, and species may have from about 10 to more than 100 song types. The males sing frequently and persistently, often while foraging; they may even sing while on the nest.

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