首页   按字顺浏览 期刊浏览 卷期浏览 Age of first breeding, dispersal and survival of Red Kites Milvus milvus in Wales
Age of first breeding, dispersal and survival of Red Kites Milvus milvus in Wales

 

作者: I. NEWTON,   P. E. DAVIS,   J. E. DAVIS,  

 

期刊: Ibis  (WILEY Available online 1989)
卷期: Volume 131, issue 1  

页码: 16-21

 

ISSN:0019-1019

 

年代: 1989

 

DOI:10.1111/j.1474-919X.1989.tb02738.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

Twenty‐nine Red Kites, that were tagged as nestlings in Wales, bred for the first time at 2–7 years old (mean 3–6). A minimum of 41% of tagged young had entered the breeding population by the 7th year. Individuals moved up to 22 km between birthplace and breeding place and, having bred, most stayed in the same locality from year to year. No differences in these various respects were found between the sexes, though two long movements by territorial birds both involved females. Annual survival of adult breeders was estimated at aroun

 

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