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Fall Migration Archives
Spring Migration      Milkweed     Egg      Fall Migration      Analyzing Data
These maps show sightings of overnight roosts during fall migration and reveal the timing of peak migration from Canada to Mexico.
Monarch Butterfly Migration Map: Fall Roosts, Fall 2014 Monarch Butterfly Migration Map: Fall Roosts, Fall 2014 Monarch Butterfly Migration Map: Fall Roosts, Fall 2013
Fall 2015
animation | map | data
Fall 2014
animation | map | data
Fall 2013
animation | map | data
Monarch Butterfly Migration Map: Fall Roosts, Fall 2012 Fall migration 2011: map of overnight roosts Fall migration 2010: map of overnight roosts
Fall 2012
animation | map | data
Fall 2011
animation | map | data
Fall 2010
animation | map | data
Fall Monarch Butterfly Migration Map Fall Monarch Butterfly Migration Map

Fall Monarch Butterfly Migration Map

Fall 2009
animation | map | data
Fall 2008
animation | map | data
Fall 2007
map | data
Fall Monarch Butterfly Migration Map Fall Monarch Butterfly Migration Map Fall Monarch Butterfly Migration Map

Fall 2006
map | data

Fall 2005
map | data
Fall 2004
map | data 
Fall Monarch Butterfly Migration Map  
More Fall Maps
These maps only show fall migration roosts. See Past Seasons for more maps
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Combined Years
animation | map | data
   

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