There is more info on the Trident site at Interbay. Ingrid Taylar's notes suggest that virtually all tern eggs were gone before any chance of hatching, so that nesting success could be close to zero. She also believes that the Bald Eagle predation in the area, which is regular and persistent, is directed at Glaucous-winged Gull chicks on other buildings. So if there are family groups of Caspian Terns on Elliott Bay, here might they come from? Brien Meilleur always has thought that the lower Duwamish was a promising area for terns, while Tim Brennan reports seeing hundreds of Caspian Terns in that area. Perhaps there are more suitable commercial roof-tops on that side of the bay.

All in all though, it is pretty rough going for breeding Caspians in the Puget Sound area and my sympathies are definitely with them has they driven from location to location, either by human or animal disruption.

--
David Hutchinson, Owner
Flora & Fauna: Nature Books
Discovery Gardens: Native Plants
3706 Corliss Ave North
Seattle,WA.98103
http://www.ffbooks.net/
206-623-4727