Mona Miller wrote:Journey North doesn't tag monarchs. The Monarch Watch data is also based on tag recoveries.
According to the Monarch Watch Searchable Database, the Monarch Watch doesn't have any tag recovery data for the latitudes as high as Grygla, Minnesota or Thunder Bay, Ontario (except some 1998 recoveries of monarchs tagged in Winnipeg, Manitoba the 3rd week in August that may have been reared rather than field caught). Monarch Watch also doesn't mail out tags to taggers until around Aug. 5-10* so taggers at latitudes as high as Grygla, Minnesota and Thunder Bay, Ontario do not likely get their tags until around August 10-15 even though Aug. 1 - 10 is when the migrant monarchs are the most abundant (based on Journey North sighting data and my field experiences).
*In his recent Aug. 1, 2009 email, Jim Lovett wrote: "Tags for the 2009 Monarch Watch Tagging Kits have arrived and we have begun assembling the kits. Those of you that ordered between January 1st and June 30th of this year should receive your tags within the next week or so."