When to start tagging in Central Texas

[JFS61]

This is my first year tagging, so I just wondering as to when would be the optimum time for me to start tagging butterflies here in the Central Texas area, as I want to make sure and tag only those who will be making the trek to Mexico for the winter.

[Mona Miller]

http://www.learner.org/jnorth/monarch/index.html
Follow the real migration on Journey South that will give you an idea of where it is currently located.
http://www.learner.org/jnorth/maps/mona ... oosts.html
This is a 2009 Roost map

http://www.monarchwatch.org/tagmig/index.htm
Migration and Tagging
http://www.monarchwatch.org/tagmig/peak.html
Peak Migration Dates
Latitude for Bryan, Texas is +30.67
Latitude 31, Midpoint 10/12, Peak in Abundance of Monarchs 10/4-16 (This is only an estimate)

Texas Monarch Watch
http://www.texasento.net/dplex.htm
Peak Migration Dates
http://www.texasento.net/fall_peak.htm