Caspian terns’ consumption of juvenile salmonids grew last year, as did the sheer numbers of another avian predator — doubled-crested cormorants — in the Columbia River estuary and elsewhere, according to a draft research report released this week.
Caspian terns’ consumption of juvenile salmonids grew last year, as did the sheer numbers of another avian predator — doubled-crested cormorants — in the Columbia River estuary and elsewhere, according to a draft research report released this week.