Date: 4/4/13 8:15 am
From: Jim Wilson <wlsngang...>
Subject: [MDBirding] Ruby-throat Hummingbird Migration
I was doing some exploring at the Journey North web site ( http://www.learner.org/jnorth/ ). In particular I was interested in seeing the difference in the Ruby-throat migration for last year and this year.
Check out the animated maps at these two sites:

2013: http://www.learner.org/jnorth/maps/humm_ruby_spring2013.html

2012: http://www.learner.org/jnorth/maps/galleries/2012/humm_ruby_an_spring2012.html

Rather amazing how they adapt to the weather and not to other migration factors.

Jim Wilson
Queenstown

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