摘要 : Once one of the most common species seen at bird feeding stations across much of North America in winter, the Evening Grosbeak (Coccothraustes vespertinus), appears to be experiencing a population decline. Like other finches assoc... 展开
作者 | Bonter DN Harvey MG |
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作者单位 | |
期刊名称 | 《The condor》 |
总页数 | 6 |
语种/中图分类号 | 英语 / Q959.7 |
关键词 | Coccothraustes vespertinus Evening Grosbeak population trends Project FeederWatch FEEDER COUNTS BIRDS CONJUNCTIVITIS SALMONELLOSIS OREGON |
馆藏号 | N2008EPST0000666 |