As I was reading the following article about how beneficial the Xcluder fence has been to breeding tubenoses at Kaena Point, Hawaii - I could not help but wonder if a variation of such a project (in combination with other measures) might help breeding colonies of Black-capped Petrels?
http://www.nytimes.com/2012/04/17/science/birds-of-kaena-point-hawaii-enjoy-a-revival-thanks-to-a-fence.html
More info on the Xcluder fence is here:
http://restorekaena.org/project-solution.html
Granted, the Black-capped Petrel's breeding habitat is steeper and more forested, but maybe there are situations where it could be used to effect...
I also wonder if the Xcluder fences might be able to help Bermuda Petrels regain a toehold on strategic slices of the mainland? That might provide long-term relief from sea level rise affecting their precarious nesting islands...
Nathan Dias - Charleston, SC