Fifty years of data show new changes in bird migration.

A growing body of research shows that birds' spring migration has been getting earlier and earlier in recent decades. New research on Black-throated Blue Warblers, a common songbird that migrates from Canada and the eastern US to Central America and back every year, uses fifty years of bird-banding data to add another piece to the puzzle, showing that little-studied fall migration patterns have been shifting over time as well.

https://www.sciencedaily.com/releases/2020/02/200220141757.htm

Publicado el febrero 21, 2020 12:36 MAÑANA por biohexx1 biohexx1

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