Figure 1
From: Daily activity budgets reveal a quasi-flightless stage during non-breeding in Hawaiian albatrosses
Overwinter destinations of laysan and black-footed albatross from Midway. Kernel density analysis of 95%, 75%, 50% and 25% utilization distribution (UD) contours, in increasingly darker shades of blue, for GLS-tracked laysan albatross (n = 18, top panel) and black-footed albatross (n = 15, bottom panel) during the overwinter phase of non-breeding in 2008, 2009, 2011 and 2012. The solid black circle indicates the colony at Midway Atoll National Wildlife Refuge.