More migration

Here is an animated version (source) of tonight's migration, which is moving pretty heavily up the central states. For those who weren't sure what represented migration versus weather in the previous images I've posted, this animation should make it abundantly clear - watch the movement pop up in an east-to-west wave as night falls. For a primer on radar birding, see here.

Compare with tonights winds. Strong northward winds all along the golf coast, and weak winds up the central flyway - good movement conditions. (Source).


This is a fun way for me to "watch" birds while I'm up late writing essays for finals...