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 | Query: phylloscopus borealis | Result: 19th of 20 |  |   
Arctic warbler (Phylloscopus borealis)
| Subject:  | Arctic warbler (Phylloscopus borealis) 
 |  | Poster:  | Axis (ground_assault_11@yahoo.com) 
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| Resolution: 612x408
File Size: 125607 Bytes
Date: 2020:10:05 20:32:55
Upload Date: 2020:10:05 21:40:47
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 Along willow-lined streams in Alaska in summer, the song of the Arctic warbler is unmistakable: a slow trill, with an insistent or hammering sound. When the bird hops into view among the branches, it is less distinctive, plain olive and whitish with a pale eyebrow. In fall, the Arctic warbler crosses the Bering Strait and migrates south in Asia.   |   
 
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phylloscopus borealis 19/20 | 
 
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