Some bar-tailed godwits Limosa lapponica have the longest known non-stop flight of any migrant, flying 11,000 km from Alaska to their New Zealand non-breeding areas. Prior to migration, <answer>55 percent</answer> of their bodyweight is stored as fat to fuel this uninterrupted journey.
How much of the bar-tailed godwits bodyweight is stored as fat before migration?
55 percent