Figure 2. Kernel density distribution of Atlantic puffins in August, September, October, November, December, January, February and July -April over the 2007/2008 and 2009/2010 winters. Sample sizes are shown in brackets after the month. Kernels are not shown over land and the apparent use of areas immediately to the west of southern Scotland and northwest England are probably artefacts due to the inherent errors in fixes.
