Tree cavity use by Chimney Swifts: implications for forestry and population recovery

Avian Conservation and Ecology

KristynRichardson,¹  Douglas C. Tozer,¹  Trina M. Fitzgerald¹  CarolynZanchetta,¹ 

[1] Bird Studies Canada

关键词: aerial insectivore;    cavity nesting;    cavity roosting;    Chimney Swift;    Chaetura pelagic;    ecological specialization;    forest management;    population decline.;   

DOI  :  10.5751/ACE-00677-090201

学科分类：社会科学、人文和艺术（综合）

来源: Resilience Alliance Publications

【 摘 要 】

The Chimney Swift (Chaetura pelagica) is an aerial insectivore and a cavity-nesting/roosting specialist designated as threatened in several jurisdictions. As the occurrence of suitable chimneys declines, Chimney Swifts may increasingly nest and roost in tree cavities. It is therefore important to identify characteristics of suitable nest or roost trees and assess their frequency of occurrence. We reviewed 59 historic and modern records of trees used by Chimney Swifts to understand characteristics of suitable nest or roost trees. Chimney Swifts used at least 13 different deciduous and coniferous tree species. All of the trees were greater than 0.5 m diameter at breast height (DBH) and were described as hollow or having cavities. Nest or roost tree height was 12.7

【 授权许可】

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