棕头鸥
<正> 棕头鸥成鸟头棕褐色,额较浅淡,后颈呈现一圈暗色,接近黑色的环,喉部更为明显。背、腰、翅上覆羽及三级飞羽灰色,腹部纯白。第1、2枚初级飞羽黑色,具白色端斑;第三枚初级飞羽黑色,具一白带,此白带会增加、延展,同时变得多灰色;最内侧初级飞羽灰,具...
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| Main Author: | |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Chinese Journal of Wildlife
2003-01-01
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| Series: | 野生动物学报 |
| Online Access: | http://ysdw.nefu.edu.cn/thesisDetails#10.19711/j.cnki.issn2310-1490.2003.03.021 |
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