The science of birds, their ecology and conservation along the East Atlantic Flyway
Our current main collaborative project . . .
Migration strategy of Bluethroats Luscinia svecica namnetum. Stopover behaviour from breeding to wintering sites.
The main aim of this project is to analyse the migration strategy of the Bluethroat L. s. namnetum from its breeding grounds in western France to its wintering sites in Portugal and Morocco. Specific question to solve are:
• How does the Bluethroat organize its migration in relation the fuel management and stopover duration? Is there a stable migration pattern along the route, or are there changes in the migratory speed along the route, detectable in changes in the stopover duration or the fuel deposition rate?
• Does the species gain fuel before migration at its breeding quarters?
• Does the species arrive in its wintering areas with extra fuel?
• Is there competition between conspecifics at the stopover sites, detectable in difference in fuel deposition rate, amount of fuel gained, or stopover duration between age or sex classes?
• Does the species minimize time, energy or predation risk during migration?
Target species: Bluethroat.
Locations: Atlantic coastal marshes in France, Spain, Portugal and Morocco.
Sampling period: 15 Aug – 30 Sep 2014
Sampling effort: daily trapping sessions, during a period of 4 h, starting at dawn.