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RADAR AND VISIBLE MIGRATION IN NORFOLK, ENGLAND: A COMPARISON

 

作者: John Wilcock,  

 

期刊: Ibis  （WILEY Available online 1964）
卷期: Volume 106, issue 1  

页码: 101-109

 

ISSN:0019-1019

 

年代: 1964

 

DOI:10.1111/j.1474-919X.1964.tb03683.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

SummaryComparison of radar and visible passage in Norfolk during autumn and spring is made. With following winds migrants fly high, well above visual range. With strong opposing winds migrants fly below the radar horizon. It is possible to detect high flying migrants by making observations lying supine, thereby adding useful data.

 

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