Morning Flight Was Crowded Today

[Black Vultures on the Morning Flight Platform at Higbee Beach WMA, Cape May, NJ, noon today. Not the usual suspects for the site.]

At noon today two Yellow-rumped Warblers emerged from the trees of Higbee Beach WMA and flew north and high, across the Cape May Canal, to parts unknown. Were they migrating? If not, what were they doing? Still so much to learn. . .