Birds
Warbling Vireo
Vireo gilvus
A small, olive-green songbird known for its rich, rambling warble. Easy to hear, tricky to spot!
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Field Note
The Warbling Vireo sings almost non-stop, even while sitting on the nest — males have been known to sing over 4,000 times in a single day!
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Where to Spot It at ABNC
Listen for their continuous warbling song in deciduous trees along trails and near the pond. Look in the canopy of cottonwoods and aspens.
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Habitat
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Why It Matters
Vireos are important insect predators, consuming large numbers of caterpillars and other insects that can damage trees.
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Good to Know
This tiny greenish bird loves to sing a long, bubbly song from high up in the trees. You'll hear it before you see it!