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  RBNU-0809-128a.jpg - Red-breasted Nuthatch (Sitta canadensis) at IBO's Lucky Peak banding station on Sept. 5, 2008, by Sheri Robison. Jay Carlisle comments: "Adult, probably female. This RBNU was interesting because it was finishing growing its outer primaries (symmetric molt), but secondaries 5 & 6 (which are usually finishing as the outer primaries finish) are still old while secondary 4 is finishing it's growth. Thus, the secondaries were out of step with the primaries (relative to a normally molting bird), and the pattern was the same on both wings.  
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RBNU-0809-128a | Red-breasted Nuthatch (Sitta canadensis) at IBO's Lucky Peak banding station on Sept. 5, 2008, by Sheri Robison. Jay Carlisle comments: "Adult, probably female. This RBNU was interesting because it was finishing growing its outer primaries (symmetric molt), but secondaries 5 & 6 (which are usually finishing as the outer primaries finish) are still old while secondary 4 is finishing it's growth. Thus, the secondaries were out of step with the primaries (relative to a normally molting bird), and the pattern was the same on both wings.
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Camera: Canon PowerShot S2 IS | Date: 9/5/08 11:21 AM | Resolution: 1440 x 1080 | ISO: Unknown (1) | Exp. Time: 1/60s | Aperture: 3.5 | Focal Length: 29.3mm
Total images: 40 | Help