Date: 7/7/18 8:56 am From: Linda Fink <linda...> Subject: [obol] Re: Eagles and Murres (and others)
Thanks for the interesting links. Another bird impacted by eagles in the area I monitor is Black Oystercatchers. Last year none of the 6 nests I monitor were successful, largely because eagles sat nearby for long periods of time. Eagles don't have to fly over to disturb BLOY. BLOY will not go near their nest when a predator is whatever-they-consider too close. This year 4 pairs didn't bother to try nesting at all. Eagles seem to have found new perching areas away from 2 BLOY nests and those are still viable.
Interestingly, an eagle nest is not far from the Refusal Rock BLOY nest that failed 3 times in succession last year but appears to have successfully hatched chicks this year (monitored by another volunteer). Maybe BLOY can get used to eagles eventually. Of course, BLOY are too small for eagles to bother with so it's not that eagles deliberately disrupt nesting as is the case with Murres. Peregrines, otoh, do take BLOY but are not as prevalent everywhere as eagles... yet.
It's an interesting time to be watching species interaction on the Oregon coast.