Some migration trackers tools

Below are click on links to help folks with understanding what birds come at or by a certain time during April and May and more on the expected species as well as when there is or not a good wave coming thru.Also some weather information affecting the migration or specifically dynamics...

http://tinyurl.com/migrattrack

http://www.woodcreeper.com/category/nexrad-migration-study/migration-radar/

http://www.birdcapemay.org/forecast_primer.shtml