^°1908^^] Dawson, Bird Colonies of the Olympiades. 159 



R. Pigeon Guillemot, 10. R. Black Oystercatcher, 1 pair. 



R. Western Gull, 200. V. Heennann Gull, 10. 



R. White-crested Cormorant, 2 pairs. V. Western Sandpiper, 6. 



Wii.LouGHBY Rock. 



Loc— Lat. 47° 24' 40" N.; Long. 124° 21' 22" W.; offshore | mile. 



Area. — About 3 acres. 



Desc. — 125 feet high, rounded, earth-capped over worn metamorphic 

 conglomerate; vertical on W., very steep S., N. and E., but climbable on 

 south. Heavily grassed on top, guano-covered on sides, — a varied and 

 populous rookery. 



R. Tufted Puffin, .500. R. Baird Cormorant, 500. 



R. Pigeon Guillemot, 10. R. Black Oystercatcher, 1 pair. 



R. Cahfomia Murre, 300. V. Black Turnstone, 1. 



R. Western Gull, 100. V. Western Sandpiper, 10. 



R. White-crested Cormorant, 50. 



Destruction Isl.\nd. 



Loc— Lat. 47° 40' 20" N.; Long. 124° 30' W.; offshore 3| miles. 



Area. — Top 60 acres — with surrounding reefs; about ^ square mile. 



Desc. — A flat-topped island with sharply sloping or nearly perpendicular 

 sides, rising 60 feet above tide. Covered by dense growth of vegetation, 

 chiefly salmon-berry and salal thickets growing to height of a man's head, 

 or higher on top; same with grass and bushes of other sorts on sides. Com- 

 posed of deep loam (guano?), clay, gravel (incipient conglomerate of 

 Pleistocene age) in descending series, resting unconformably upon the 

 upturned edges of Miocene sandstone. Extensive area of sandstone reefs 

 exposed on all sides of island at low tide, including ribs and ridges of 

 sculptured rock unreached by water save in time of storm. 

 R. Rhinoceros Auklet, 10,000. 

 R. Pigeon Guillemot, 30. 

 R. Glaucous-winged Gull, 2 pairs. 

 R. Black Oystercatcher, 12 pairs. 

 R. Rufous Hummer {Selasphorus rufus), 20. 

 R. Rusty Song Sparrow {Melospiza cinerea morphna), 100. 

 R. Sooty Fox Sparrow (Passerella iliaca fuliginosa), 100. 

 R. Bam Swallow (Hirundo erythrogaster) , 20. 

 R. Lutescent Warbler (Helminthophila celata lutescens), 100. 

 R. Yellow Warbler (Dendroica cesiiva), 4. 



R. Western Winter Wren {Olbiorchilus hiemahs pacificus), 10. 

 R. Russet-backed Thrush (Hylocichla ustulata), 100. 

 R. Western Robin (Merula migratoria propinqua), 2. 



