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Video Surveillance of Nesting Birds$
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Christine Ann Ribic and Frank Richard Thompson III

Print publication date: 2012

Print ISBN-13: 9780520273139

Published to California Scholarship Online: January 2013

DOI: 10.1525/california/9780520273139.001.0001

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PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2018. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use (for details see www.california.universitypressscholarship.com/page/535/privacy-policy-and-legal-notice).date: 23 January 2019

Hatching and Fledging Times from Grassland Passerine Nests

Hatching and Fledging Times from Grassland Passerine Nests

(p.47) Chapter Four Hatching and Fledging Times from Grassland Passerine Nests
Video Surveillance of Nesting Birds

Pamela J. Pietz

Diane A. Granfors

Todd A. Grant

University of California Press

Accurate estimates of fledging age are needed in field studies to avoid inducing premature fledging or missing the fledging event. Both may lead to misinterpretation of nest fate. Correctly assessing nest fate and the length of the nestling period can be critical for accurate calculation of nest survival rates. We estimated fledging ages from grassland passerine nests monitored from hatching through fledging with miniature video cameras in North Dakota and Minnesota from1996 to 2001. We compared these values to those obtained from traditional nest visits and from literature. Video surveillance was a useful tool for obtaining new information, for assessing standard field methods, and for amending or corroborating published statements related to hatching and fledging chronology.

Keywords:   camera, fledging age, grassland, hatching, nest visits, passerine, premature fledging, video

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