According to the bulletin release, necropsies on at least ten carcasses have been performed with no evidence of infecctious (sic) disease. Instead, it has been determined that the birds examined, had suffered starvation, and in their weakened state, drowned. Investigators determined the cause of death after observing that the birds were severely emaciated and had “empty stomachs and inttestinal (sic) tracts, and little body fat.”
Although the cause of the starvation is currently unknown, it is suspected that this most recent die-off, like those of previous years, is connected to unusually warmer waters that are encroaching ever-further north.
Warmer waters killing off their food supply – we’ll see more and more of this as oceans continue to warm.