Timing of autumn migration of young Corncrakes Crex crex |
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| Authors: | ANITA M DONAGHY RHYS E GREEN JOHN O’HALLORAN |
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| Institution: | 1. School of Biological, Earth and Environmental Science, University College Cork, Cork, Ireland;2. Conservation Science Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK;3. RSPB, The Lodge, Sandy, Bedfordshire SG19 2DL, UK |
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| Abstract: | Knowledge of the timing of migration of young Corncrakes is required for effective implementation of conservation measures. Forty Corncrake chicks were radiotracked during the period between independence and departure from the natal area to determine the age and time at which fledged juveniles depart on migration. Departure occurred between early August and mid‐September at a mean age of 44 days, around the age at which growth of the primary feathers ceases. Chicks from later broods are exposed to greater risk of being killed during mowing, but provision of late mowing options in conservation schemes could enhance their survival. |
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| Keywords: | grass mowing Mayfield method radiotracking survival rate |
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