When does the main northward departure of Ruby-crowned Kinglets typically begin from Southern U.S. wintering locations?

Answer

Through March and into April

While some movement south starts in late February, the bulk or main surge of birds departing northward from Gulf Coast or Southern U.S. wintering spots occurs during the period spanning March through April.

When does the main northward departure of Ruby-crowned Kinglets typically begin from Southern U.S. wintering locations?
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