The New York Times reports

This year’s outbreak of the H5N1 virus has resulted in the deaths of nearly 400,000 wild birds worldwide. Scientists are studying the pathways of contagion among species.

The wide-scale outbreaks have provided researchers with a new opportunity to fine-tune their understanding of the disease by studying which wild bird species, behaviors and ecologies play key roles in transmission.

Read article at A Gull Flaps Its Wings and a Deadly Virus Explodes- The New York Times