Table 1: 1Seabird Tracking Database
http://www.seabirdtracking.org/
Our overarching prediction is that seabirds will use both atmospheric infrasound (flying birds) and hydro infrasound (penguins) to navigate and this will be evident by changes in trajectories in response to infrasound. The breadth and quantity of data available will also allow us to finer scale relationships between birds and infrasound, which may be linked to the detection of weather or oceanographic conditions through infrasound detection. One of the strengths of the pre-existing data is that a range of species have been tracked, showing natural variation in life history (Table 2). By comparing species which travel short and long distances, migrant and non-migrants, and different phylogenetic groups with physiological differences, we will be able to test the following hypotheses: