Northern rough winged swallow is plainest swallow in North America. Plain brown above with indistinct brown wash across throat and breast.
ID: 2179801935
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- 大图:7008 × 4672 像素·59.33 cm × 39.56 cm·300dpi·JPG
- 中图:1000 × 667 像素·35.28 cm × 23.53 cm·72dpi·JPG
- 小图:500 × 334 像素·17.64 cm × 11.78 cm·72dpi·JPG