The largest BOPE populations exist or existed on Lisianski, Midway, and Laysan Islands. Those populations were heavily impacted by the recent tsunami, as hundreds (or perhaps thousands) of active nests were inundated. Unfortunately, the petrels are not monitored at those locations. At Tern Island, however, we have a very small but steady population of Bonin Petrels that we study at night throughout the breeding season. Our small population appears to be holding steady or increasing -- but we only have a 20-30 breeding pairs on Tern, versus 10s of thousands that are/were on Lisianski, Midway and Laysan. We do have an excellent opportunity to study the birds at Tern Island, however.
|Sarah Youngren with the last of the season's Bonin Petrel chicks from Tern Island before fledging, June 2011.|