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Apparent Survival and Recapture Rates of Common Grackles.
- Source :
- North American Bird Bander; Jan-Jun2021, Vol. 46 Issue 1/2, p9-12, 4p
- Publication Year :
- 2021
-
Abstract
- Common Grackles (Quiscalus quiscula) are experiencing a steep continent-wide population decline but are expanding in the prairie pothole region. From 2015-2020 we conducted a mark-recapture banding study to determine adult survival of Common Grackles near Edenwold, Saskatchewan. We used a Modified Australian crow trap to capture and band 313 grackles and recaptured 55 individuals a total of 75 times in subsequent years; a 22% recapture rate. We calculated an annual apparent adult survival of 69%. [ABSTRACT FROM AUTHOR]
- Subjects :
- SURVIVAL rate
DEMOGRAPHIC change
Subjects
Details
- Language :
- English
- ISSN :
- 03638979
- Volume :
- 46
- Issue :
- 1/2
- Database :
- Supplemental Index
- Journal :
- North American Bird Bander
- Publication Type :
- Academic Journal
- Accession number :
- 164693666