Abstract
Amount of predation by Falco eleonorae on trans-mediterranean migrants About 2000 pairs ofFalco eleonorae breed on Mediterranean (and Atlantic) islands. These 4000 adults rear approximately 4000 young during the latter stages of the autumn migration. The author tries to calculate the number of migratory birds on which the Falcons prey in the last 60 days of their stay in the Palearctic region. He supposes the mean weight of the favourite prey to be 20 grams and the daily amount of food 80 grams and thus calculates that 1.750.000 birds of the size of a Nightingale serve annually as food for these Falcons during the period August 25 to October 25.Moreau (1961) estimated the number of Palearctic migrants crossing the Mediterranean sea to be about 600 millions. If this figure should be nearly correct, more than one out of every 600 migrants becomes a victim ofFalco eleonorae.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
