425 - The Trill of a Pine Warbler
My companion gasped in the middle of a sentence as a pine warbler darted over my head and landed on rough spruce bark a few feet way. Then he swooped to a rock wall and paused mid-hop to belt out a trill. We watched his stout beak open and his white wing bars vibrate with the effort. Pine warblers are aptly named, as they are rarely spotted anywhere but in pine trees.
The skinny
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