Migration phenology of long distance spring migrants
Survey 2011 - ongoing
Twenty-two species are monitored annually to establish their migrations times at North Bull Island. Results to date, based on seven years data, show that species arrive in a relatively consistent order each spring. When a longer dataset has been established the mean arrival times will be examined for trends and for potential causes of any trends observed.
Birds of North Bull Island - Dublin Bay (2017) All Rights Reserved.