High pressure over New England and some gnarly precipitation in parts of the Southeast, Great Plains and Upper Midwest, thwarted nocturnal migration for some locales last night, but otherwise birds were on the move throughout most of the country. The heaviest returns continue to come from the Texas Gulf Coast indicating heavy Trans- and Circum-Gulf migration. Heavy migration was also apparent throughout the Midwest east of the stationary front, and along the Pacific flyway from the Desert Southwest all the way up into the Pacific Northwest. It’s clearly May, and for nocturnal migrants that means “all systems GO!”