FIELD NOTES DOUG BELL JUNE 12, 1985 LOCATION: PIER 91, BUILDING 48, PORT OF SEATTLE, SEATTLE, WA. HABITAT: Port, Industry, Harbor. Port has large warehouses, upon which gull colonies are located - (colonies atop (at least) buildings 47, 48, 38. Roof tops are quite open, have little opportunity for shade, large open dock and loading areas for cars. TIME: 14:30 - 15:15 Set trap out over 3-egg clutch atop building 48. DAB-031-A-B-C Due to sensitive nature of area, and possibility of being observed, I did not survey the whole roof top. But there are maybe 20-30 nests up here. Caught WDAB-030 a light-primaried bird. Mate same. Looks like about 1/2 of the birds observed here (8 out of 16) have primary tips slightly darker than mantle. Other half have tips = mantle blue.