Whitethroat by Peter Hassett, Rainham Marsh, 14 May 2017

New research shows climate change is altering the delicate seasonal clock that North American migratory songbirds rely on to successfully mate and raise healthy offspring, setting in motion a domino effect that could threaten the survival of many familiar backyard bird species.

Click on the link to read the rest of the article: Migratory birds arriving late to breeding grounds